6-K

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 6-K

Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16

under the Securities Exchange Act of 1934

For the Month of December 2020

1-15240

(Commission File Number)

JAMES HARDIE INDUSTRIES plc

(Translation of registrant’s name into English)

Europa House, Second Floor

Harcourt Centre

Harcourt Street, Dublin 2, D02, WR20, Ireland

(Address of principal executive offices)

Indicate by check mark whether the registrant files or will file annual reports under cover Form 20-F or Form 40-F.

Form 20-F..X....  Form 40-F.........

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1): Not Applicable

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7): Not Applicable

TABLE OF CONTENTS

Forward-Looking Statements	3
Exhibit Index	5
Signatures	6

2

Forward-Looking Statements

This Form 6-K contains forward-looking statements. James Hardie Industries plc (the “company”) may from time to time make forward-looking statements in its periodic reports filed with or furnished to the Securities and Exchange Commission, on Forms 20-F and 6-K, in its annual reports to shareholders, in offering circulars, invitation memoranda and prospectuses, in media releases and other written materials and in oral statements made by the company’s officers, directors or employees to analysts, institutional investors, existing and potential lenders, representatives of the media and others. Statements that are not historical facts are forward-looking statements and such forward-looking statements are statements made pursuant to the Safe Harbor Provisions of the Private Securities Litigation Reform Act of 1995.

Examples of forward-looking statements include:

•statements about the company’s future performance;

•projections of the company’s results of operations or financial condition;

•statements regarding the company’s plans, objectives or goals, including those relating to strategies, initiatives, competition, acquisitions, dispositions and/or its products;

•expectations concerning the costs associated with the suspension or closure of operations at any of the company’s plants and future plans with respect to any such plants;

•expectations concerning the costs associated with the significant capital expenditure projects at any of the company’s plants and future plans with respect to any such projects;

•expectations regarding the extension or renewal of the company’s credit facilities including changes to terms, covenants or ratios;

•expectations concerning dividend payments and share buy-backs;

•statements concerning the company’s corporate and tax domiciles and structures and potential changes to them, including potential tax charges;

•uncertainty from the expected discontinuance of LIBOR and transition to any other interest rate benchmark;

•statements regarding the effect and consequences of the novel coronavirus ("COVID-19") public health crisis;

•statements regarding tax liabilities and related audits, reviews and proceedings;

•statements regarding the possible consequences and/or potential outcome of legal proceedings brought against us and the potential liabilities, if any, associated with such proceedings;

•expectations about the timing and amount of contributions to AICF, a special purpose fund for the compensation of proven Australian asbestos-related personal injury and death claims;

•expectations concerning the adequacy of the company’s warranty provisions and estimates for future warranty-related costs;

•statements regarding the company’s ability to manage legal and regulatory matters (including but not limited to product liability, environmental, intellectual property and competition law matters) and to resolve any such pending legal and regulatory matters within current estimates and in anticipation of certain third-party recoveries; and

•statements about economic or housing market conditions in the regions in which we operate, including but not limited to, the levels of new home construction and home renovations, unemployment levels, changes in consumer income, changes or stability in housing values, the availability of mortgages and other financing, mortgage and other interest rates, housing affordability and supply, the levels of foreclosures and home resales, currency exchange rates, and builder and consumer confidence.

Words such as “believe,” “anticipate,” “plan,” “expect,” “intend,” “target,” “estimate,” “project,” “predict,” “forecast,” “guideline,” “aim,” “will,” “should,” “likely,” “continue,” “may,” “objective,” “outlook” and similar expressions are intended to identify forward-looking statements but are not the exclusive means of identifying such statements. Readers are cautioned not to place undue reliance on these forward-looking statements and all such forward-looking statements are qualified in their entirety by reference to the following cautionary statements.

3

Forward-looking statements are based on the Company’s current expectations, estimates and assumptions and because forward-looking statements address future results, events and conditions, they, by their very nature, involve inherent risks and uncertainties, many of which are unforeseeable and beyond the Company’s control. Such known and unknown risks, uncertainties and other factors may cause actual results, performance or other achievements to differ materially from the anticipated results, performance or achievements expressed, projected or implied by these forward-looking statements. These factors, some of which are discussed under “Risk Factors” in Section 3 of the Form 20-F filed with the Securities and Exchange Commission on 19 May 2020, include, but are not limited to: all matters relating to or arising out of the prior manufacture of products that contained asbestos by current and former Company subsidiaries; required contributions to AICF, any shortfall in AICF funding and the effect of currency exchange rate movements on the amount recorded in the Company’s financial statements as an asbestos liability; the continuation or termination of the governmental loan facility to AICF; compliance with and changes in tax laws and treatments; competition and product pricing in the markets in which the Company operates; the consequences of product failures or defects; exposure to environmental, asbestos, putative consumer class action or other legal proceedings; general economic and market conditions; the supply and cost of raw materials; possible increases in competition and the potential that competitors could copy the Company’s products; reliance on a small number of customers; a customer’s inability to pay; compliance with and changes in environmental and health and safety laws; risks of conducting business internationally; compliance with and changes in laws and regulations; currency exchange risks; dependence on customer preference and the concentration of the Company’s customer base on large format retail customers, distributors and dealers; dependence on residential and commercial construction markets; the effect of adverse changes in climate or weather patterns; possible inability to renew credit facilities on terms favorable to the Company, or at all; acquisition or sale of businesses and business segments; changes in the Company’s key management personnel; inherent limitations on internal controls; use of accounting estimates; risk and uncertainties arising out of the COVID-19 public health crisis, including the impact of COVID-19 on our business, sales, results of operations and financial condition and all other risks identified in the Company’s reports filed with Australian, Irish and US securities regulatory agencies and exchanges (as appropriate). The Company cautions you that the foregoing list of factors is not exhaustive and that other risks and uncertainties may cause actual results to differ materially from those referenced in the Company’s forward-looking statements. Forward-looking statements speak only as of the date they are made and are statements of the Company’s current expectations concerning future results, events and conditions. The Company assumes no obligation to update any forward-looking statements or information except as required by law.

4

EXHIBIT INDEX

Exhibit No.	Description
99.1	Ceasing to be a substantial holder
99.2	Appendix 2A
99.3	Appendix 3G
99.4	Appendix 3Y - Truong
99.5	Appendix 3Y - Truong
99.6	Change in substantial holding

5

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

	James Hardie Industries plc
Date:    22 December 2020	By:  /s/ Joseph C. Blasko
	Joseph C. Blasko
	General Counsel, Chief Compliance Officer and Company Secretary

6

EXHIBIT INDEX

Exhibit No.	Description
99.1	Ceasing to be a substantial holder
99.2	Appendix 2A
99.3	Appendix 3G
99.4	Appendix 3Y - Truong
99.5	Appendix 3Y - Truong
99.6	Change in substantial holding

7

EX-99.1

James Hardie Industries plc Group Company Secretary Second Floor, Europa House Harcourt Centre Harcourt Street, Dublin 2 DO2 WR20 Ireland F: +353 (0) 1 479 1128 14 December 2020 Dear Sir/Madam RE: NOTIFICATION OF A NOTIFIABLE INTEREST UNDER COMPANIES ACT 2014 This notification is given in discharge of the duty which we understand is imposed pursuant to Part 17, Chapter 4 of the Irish Companies Act 2014. UniSuper Limited as trustee for UniSuper (USL) and UniSuper Management Pty Ltd (USM) no longer have a notifiable interest in the relevant share capital of James Hardie Industries plc (JHI plc). As at 4 December 2020 USL and USM held 13,022,092 Chess Depository Interests in JHI plc (ASX: JHX), which we understand is a percentage of 2.93% and below the threshold of 3%. USL and USM’s interest is held via BNP Paribas Nominees Pty Limited as custodian for UniSuper Limited which has been the registered holder of all shares at all relevant times. USL and USM inadvertently did not disclose its holdings when the holding fell below the threshold of 3% on 14 October 2020. The notifiable percentage has been below 3% since that time. Yours sincerely STEPHEN ROSEMAN Head of Investments Legal UniSuper Management Pty Ltd Fund: UniSuper ABN 91 385 943 850 Trustee: UniSuper Limited ABN 54 006 027 121 Administrator: UniSuper Management Pty Ltd ABN 91 006 961 799 Australian Financial Services Licence No. 235907 Head Office Level 1, 385 Bourke Street Melbourne VIC 3000 Telephone 03 8831 6100 www.unisuper.com.au Exhibit 99.1

EX-99.2

This appendix is not available as an online form Please fill in and submit as a PDF announcement +Rule 2.7 + See chapter 19 for defined terms 31 January 2020 Page 1 Appendix 2A Application for quotation of +securities Information or documents not available now must be given to ASX as soon as available. Information and documents given to ASX become ASX’s property and may be made public. If you are an entity incorporated outside Australia and you are seeking quotation of a new class of +securities other than CDIs, you will need to obtain and provide an International Securities Identification Number (ISIN) for that class. Further information on the requirement for the notification of an ISIN is available from the Create Online Forms page. ASX is unable to create the new ISIN for non- Australian issuers. *Denotes minimum information required for first lodgement of this form, with exceptions provided in specific notes for certain questions. The balance of the information, where applicable, must be provided as soon as reasonably practicable by the entity. Part 1 – Entity and announcement details Question no Question Answer 1.1 *Name of entity We (the entity here named) apply for +quotation of the following +securities and agree to the matters set out in Appendix 2A of the ASX Listing Rules.1 James Hardie Industries plc 1.2 *Registration type and number Please supply your ABN, ARSN, ARBN, ACN or another registration type and number (if you supply another registration type, please specify both the type of registration and the registration number). 097 829 895 1.3 *ASX issuer code JHX 1.4 *This announcement is Tick whichever is applicable. ☒ A new announcement ☐ An update/amendment to a previous announcement ☐ A cancellation of a previous announcement 1.4a *Reason for update Mandatory only if “Update” ticked in Q1.4 above. A reason must be provided for an update. N/A 1.4b *Date of previous announcement to this update Mandatory only if “Update” ticked in Q1.4 above. N/A 1.4c *Reason for cancellation Mandatory only if “Cancellation” ticked in Q1.4 above. N/A 1.4d *Date of previous announcement to this cancellation Mandatory only if “Cancellation” ticked in Q1.4 above. N/A 1 Appendix 2A of the Listing Rules includes a warranty that an offer of the securities for sale within 12 months after their issue will not require disclosure under section 707(3) or 1012C(6) of the Corporations Act. If the securities to be quoted have been issued by way of a pro rata offer, to give this warranty, you will generally need to have lodged a cleansing notice with ASX under section 708AA(2)(f) or 1012DAA(2)(f) of the Corporations Act within 24 hours before the securities are offered (see ASIC Regulatory Guide 189 Disclosure relief for rights issues). If in doubt, please consult your legal adviser. Exhibit 99.2

This appendix is not available as an online form Appendix 2A Please fill in and submit as a PDF announcement Application for quotation of +securities + See chapter 19 for defined terms 31 January 2020 Page 2 1.5 *Date of this announcement 16 December 2020 Part 2 – Type of issue Question No. Question Answer 2.1 *The +securities to be quoted are: Select whichever item is applicable. If you wish to apply for quotation of different types of issues of securities, please complete a separate Appendix 2A for each type of issue. ☐ Being issued as part of a transaction or transactions previously announced to the market in an Appendix 3B ☐ Being issued under a +dividend or distribution plan ☐ Being issued as a result of options being exercised or other +convertible securities being converted ☐ Unquoted partly paid +securities that have been paid up and are now quoted fully paid +securities ☐ +Restricted securities where the escrow period has expired or is about to expire ☐ +Securities previously issued under an +employee incentive scheme where the restrictions on transfer have ceased or are about to cease ☒ +Securities issued under an +employee incentive scheme that are not subject to a restriction on transfer or that are to be quoted notwithstanding there is a restriction on transfer ☐ Other 2.2a.1 *Date of Appendix 3B notifying the market of the proposed issue of +securities for which quotation is now being sought Answer this question if your response to Q2.1 is “Being issued as part of a transaction or transactions previously announced to the market in an Appendix 3B” N/A 2.2a.2 *Are there any further issues of +securities yet to take place to complete the transaction(s) referred to in the Appendix 3B? Answer this question if your response to Q2.1 is “Being issued as part of a transaction or transactions previously announced to the market in an Appendix 3B”. N/A

This appendix is not available as an online form Appendix 2A Please fill in and submit as a PDF announcement Application for quotation of +securities + See chapter 19 for defined terms 31 January 2020 Page 3 2.2a.2.1 *Please provide details of the further issues of +securities yet to take place to complete the transaction(s) referred to in the Appendix 3B Answer this question if your response to Q2.1 is “Being issued as part of a transaction or transactions previously announced to the market in an Appendix 3B” and your response to Q2.2a.2 is “Yes”. Please provide details of the proposed dates and number of securities for the further issues. This may be the case, for example, if the Appendix 3B related to an accelerated pro rata offer with an institutional component being quoted on one date and a retail component being quoted on a later date. N/A 2.2b.1 *Date of Appendix 3A.1 lodged with ASX in relation to the underlying +dividend or distribution Answer this question if your response to Q2.1 is “Being issued under a dividend or distribution plan”. N/A 2.2b.2 *Does the +dividend or distribution plan meet the requirement of listing rule 7.2 exception 4 that it does not impose a limit on participation? Answer this question if your response to Q2.1 is “Being issued under a dividend or distribution plan”. Note: Exception 4 only applies where security holders are able to elect to receive all of their dividend or distribution as securities. For example, Exception 4 would not apply in the following circumstances: 1) The entity has specified a dollar limit on the level of participation e.g. security holders can only participate to a maximum value of $x in respect of their entitlement, or 2) The entity has specified a maximum number of securities that can participate in the plan e.g. security holders can only receive securities in lieu of dividend payable for x number of securities. N/A 2.2c.1 Please state the number and type of options that were exercised or other +convertible securities that were converted (including their ASX security code) Answer this question if your response to Q2.1 is “Being issued as a result of options being exercised or other convertible securities being converted”. N/A 2.2c.2 And the date the options were exercised or other +convertible securities were converted Answer this question if your response to Q2.1 is “Being issued as a result of options being exercised or other convertible securities being converted”. Note: If this occurred over a range of dates, enter the date the last of the options was exercised or convertible securities was converted. N/A 2.2d.1 Please state the number and type of partly paid +securities (including their ASX security code) that were fully paid up Answer this question if your response to Q2.1 is “Unquoted partly paid securities that have been paid up and are now quoted fully paid securities”. N/A

This appendix is not available as an online form Appendix 2A Please fill in and submit as a PDF announcement Application for quotation of +securities + See chapter 19 for defined terms 31 January 2020 Page 4 2.2d.2 And the date the +securities were fully paid up Answer this question if your response to Q2.1 is “Unquoted partly paid securities that have been paid up and are now quoted fully paid securities”. Note: If this occurred over a range of dates, enter the date the last of the securities was fully paid up. N/A 2.2e.1 Please state the number and type of +restricted securities (including their ASX security code) where the escrow period has expired or is about to expire Answer this question if your response to Q2.1 is “Restricted securities where the escrow period has expired or is about to expire”. N/A 2.2e.2 And the date the escrow restrictions have ceased or will cease Answer this question if your response to Q2.1 is “Restricted securities where the escrow period has expired or is about to expire”. Note: If this occurred over a range of dates, enter the date the last of the escrow restrictions has ceased or will cease. N/A 2.2f.1 Please state the number and type of +securities (including their ASX security code) previously issued under the +employee incentive scheme where the restrictions on transfer have ceased or are about to cease Answer this question if your response to Q2.1 is “Securities previously issued under an employee incentive scheme where the restrictions on transfer have ceased or are about to cease”. N/A 2.2f.2 And the date the restrictions on transfer have ceased or will cease: Answer this question if your response to Q2.1 is “Securities previously issued under an employee incentive scheme where the restrictions on transfer have ceased or are about to cease”. Note: If this occurred over a range of dates, enter the date the last of the restrictions on transfer has ceased or will cease. N/A 2.2g.1 Please state the number and type of +securities (including their ASX security code) issued under an +employee incentive scheme that are not subject to a restriction on transfer or that are to be quoted notwithstanding there is a restriction on transfer Answer this question if your response to Q2.1 is “Securities issued under an employee incentive scheme that are not subject to a restriction on transfer or that are to be quoted notwithstanding there is a restriction on transfer”. Issue of 230,570 Ordinary Shares/CDIs. As a result: 230,570 RSUs vesting pursuant to the James Hardie Industries 2001 Equity Incentive Plan (2001 Plan)

This appendix is not available as an online form Appendix 2A Please fill in and submit as a PDF announcement Application for quotation of +securities + See chapter 19 for defined terms 31 January 2020 Page 5 2.2g.2 *Please attach a document or provide details of a URL link for a document lodged with ASX detailing the terms of the +employee incentive scheme or a summary of the terms. Answer this question if your response to Q2.1 is “Securities issued under an employee incentive scheme that are not subject to a restriction on transfer or that are to be quoted notwithstanding there is a restriction on transfer”. Refer to 2001 Plan https://ir.jameshardie.com.au/public/downlo ad.jsp?id=5562 2.2g.3 *Are any of these +securities being issued to +key management personnel (KMP) or an +associate Answer this question if your response to Q2.1 is “Securities issued under an employee incentive scheme that are not subject to a restriction on transfer or that are to be quoted notwithstanding there is a restriction on transfer”. Yes 2.2g.3.a *Provide details of the recipients and the number of +securities issued to each of them. Answer this question if your response to Q2.1 is “Securities issued under an employee incentive scheme that are not subject to a restriction on transfer or that are to be quoted notwithstanding there is a restriction on transfer” and your response to Q2.2g.3 is “Yes”. Repeat the detail in the table below for each KMP involved in the issue. If the securities are being issued to the KMP, repeat the name of the KMP or insert “Same” in “Name of registered holder”. If the securities are being issued to an associate of a KMP, insert the name of the associate in “Name of registered holder”. Name of KMP Name of registered holder Number of +securities Ryan Kilcullen Julie Katigan Same Same 2,720 5,871 2.2h.1 *The purpose(s) for which the entity is issuing the +securities is: Answer this question if your response to Q2.1 is “Other”. You may select one or more of the items in the list. ☐ To raise additional working capital ☐ To fund the retirement of debt ☐ To pay for the acquisition of an asset [provide details below] ☐ To pay for services rendered [provide details below] ☐ Other [provide details below] Additional details: 2.2h.2 *Please provide any further information needed to understand the circumstances in which you are applying to have these +securities quoted on ASX, including (if applicable) why the issue of the +securities has not been previously announced to the market in an Appendix 3B You must answer this question if your response to Q2.1 is “Other”. If there is no other information to provide, please answer “Not applicable” or “N/A”. N/A

This appendix is not available as an online form Appendix 2A Please fill in and submit as a PDF announcement Application for quotation of +securities + See chapter 19 for defined terms 31 January 2020 Page 6 2.2i *Are these +securities being offered under a +disclosure document or +PDS? Answer this question if your response to Q2.1 is any option other than “Being issued as part of a transaction or transactions previously announced to the market in an Appendix 3B”. N/A 2.2i.1 *Date of +disclosure document or +PDS? Answer this question if your response to Q2.1 is any option other than “Being issued as part of a transaction or transactions previously announced to the market in an Appendix 3B” and your response to Q2.2i is “Yes”. Under the Corporations Act, the entity must apply for quotation of the securities within 7 days of the date of the disclosure document or PDS. N/A 2.3 *The +securities to be quoted are: Tick whichever is applicable ☒ Additional +securities in a class that is already quoted on ASX ("existing class") ☐ New +securities in a class that is not yet quoted on ASX ("new class") Part 3A – number and type of +securities to be quoted (existing class or new class) where issue has previously been notified to ASX in an Appendix 3B Answer the questions in this Part if your response to Q2.1 is “Being issued as part of a transaction or transactions previously announced to the market in an Appendix 3B” and your response to Q2.3 is “existing class” or “new class”. Question No. Question Answer 3A.1 *ASX security code & description N/A 3A.2 *Number of +securities to be quoted N/A Part 3B – number and type of +securities to be quoted (existing class) where issue has not previously been notified to ASX in an Appendix 3B Answer the questions in this Part if your response to Q2.1 is anything other than “Being issued as part of a transaction or transactions previously announced to the market in an Appendix 3B” and your response to Q2.3 is “existing class”. Question No. Question Answer 3B.1 *ASX security code & description Ordinary Shares/CDIs 3B.2 *Number of +securities to be quoted 230,570 3B.3a *Will the +securities to be quoted rank equally in all respects from their issue date with the existing issued +securities in that class? Yes 3B.3b *Is the actual date from which the +securities will rank equally (non-ranking end date) known? Answer this question if your response to Q3B.3a is “No”. N/A 3B.3c *Provide the actual non-ranking end date Answer this question if your response to Q3B.3a is “No” and your response to Q3B.3b is “Yes”. N/A

This appendix is not available as an online form Appendix 2A Please fill in and submit as a PDF announcement Application for quotation of +securities + See chapter 19 for defined terms 31 January 2020 Page 7 3B.3d *Provide the estimated non-ranking end period Answer this question if your response to Q3B.3a is “No” and your response to Q3B.3b is “No”. N/A 3B.3e *Please state the extent to which the +securities do not rank equally:  in relation to the next dividend, distribution or interest payment; or  for any other reason Answer this question if your response to Q3B.3a is “No”. For example, the securities may not rank at all, or may rank proportionately based on the percentage of the period in question they have been on issue, for the next dividend, distribution or interest payment; or they may not be entitled to participate in some other event, such as an entitlement issue. N/A Part 3C – number and type of +securities to be quoted (new class) where issue has not previously been notified to ASX in an Appendix 3B Answer the questions in this Part if your response to Q2.1 is anything other than “Being issued as part of a transaction or transactions previously announced to the market in an Appendix 3B” and your response to Q2.3 is “new class”. Question No. Question Answer 3C.1 *Security description 3C.2 *Security type Select one item from the list that best describes the securities the subject of this form. This will determine more detailed questions to be asked about the security later in this section. Select “ordinary fully or partly paid shares/units” for stapled securities or CDIs. For interest rate securities, please select the appropriate choice from either “Convertible debt securities” or “Non-convertible debt securities”. Select “Other” for performance shares/units and performance options/rights or if the selections available in the list do not appropriately describe the security being issued. ☐ Ordinary fully or partly paid shares/units ☐ Options ☐ +Convertible debt securities ☐ Non-convertible +debt securities ☐ Redeemable preference shares/units ☐ Other 3C.3 ISIN code Answer this question if you are an entity incorporated outside Australia and you are seeking quotation of a new class of securities other than CDIs. See also the note at the top of this form. N/A 3C.4 *Number of +securities to be quoted N/A 3C.5a *Will all the +securities issued in this class rank equally in all respects from the issue date? N/A 3C.5b N/A N/A 3C.5c *Provide the actual non-ranking end date Answer this question if your response to Q3C.5a is “No” and your response to Q3C.5b is “Yes”. N/A 3C.5d *Provide the estimated non-ranking end period Answer this question if your response to Q3C.5a is “No” and your response to Q3C.5b is “No”. N/A

This appendix is not available as an online form Appendix 2A Please fill in and submit as a PDF announcement Application for quotation of +securities + See chapter 19 for defined terms 31 January 2020 Page 8 3C.5e *Please state the extent to which the +securities do not rank equally:  in relation to the next dividend, distribution or interest payment; or  for any other reason Answer this question if your response to Q3C.5a is “No”. For example, the securities may not rank at all, or may rank proportionately based on the percentage of the period in question they have been on issue, for the next dividend, distribution or interest payment; or they may not be entitled to participate in some other event, such as an entitlement issue. N/A 3C.6 Please attach a document or provide a URL link for a document lodged with ASX setting out the material terms of the +securities to be quoted You may cross-reference a disclosure document, PDS, information memorandum, investor presentation or other announcement with this information provided it has been released to the ASX Market Announcements Platform. N/A 3C.7 *Have you received confirmation from ASX that the terms of the +securities are appropriate and equitable under listing rule 6.1? Answer this question only if you are an ASX Listing. (ASX Foreign Exempt Listings and ASX Debt Listings do not have to answer this question). If your response is “No” and the securities have any unusual terms, you should approach ASX as soon as possible for confirmation under listing rule 6.1 that the terms are appropriate and equitable. N/A 3C.8 *Provide a distribution schedule for the new +securities according to the categories set out in the left hand column – including the number of recipients and the total percentage of the new +securities held by the recipients in each category. Number of +securities held Number of holders Total percentage of +securities held 1 – 1,000 1,001 – 5,000 5,001 – 10,000 10,001 – 100,000 100,001 and over Answer this question only if you are an ASX Listing (ASX Foreign Exempt Listings and ASX Debt Listings do not have to answer this question) and the securities to be quoted have already been issued. Note: if the securities to be quoted have not yet been issued, under listing rule 3.10.5, you will need to provide to ASX a list of the 20 largest recipients of the new +securities, and the number and percentage of the new +securities received by each of those recipients, and a distribution schedule for the securities when they are issued. 3C.9a Ordinary fully or partly paid shares/units details Answer the questions in this section if you selected this security type in your response to Question 3C.2. *+Security currency This is the currency in which the face amount of an issue is denominated. It will also typically be the currency in which distributions are declared. N/A *Will there be CDIs issued over the +securities? N/A

This appendix is not available as an online form Appendix 2A Please fill in and submit as a PDF announcement Application for quotation of +securities + See chapter 19 for defined terms 31 January 2020 Page 9 *CDI ratio Answer this question if you answered “Yes” to the previous question. This is the ratio at which CDIs can be transmuted into the underlying security (e.g. 4:1 means 4 CDIs represent 1 underlying security whereas 1:4 means 1 CDI represents 4 underlying securities). N/A *Is it a partly paid class of +security? N/A *Paid up amount: unpaid amount Answer this question if answered “Yes” to the previous question. The paid up amount represents the amount of application money and/or calls which have been paid on any security considered ‘partly paid’ The unpaid amount represents the unpaid or yet to be called amount on any security considered ‘partly paid’. The amounts should be provided per the security currency (e.g. if the security currency is AUD, then the paid up and unpaid amount per security in AUD). N/A *Is it a stapled +security? This is a security class that comprises a number of ordinary shares and/or ordinary units issued by separate entities that are stapled together for the purposes of trading. N/A 3C.9b Option details Answer the questions in this section if you selected this security type in your response to Question 3C.2. *+Security currency This is the currency in which the exercise price is payable. N/A *Exercise price The price at which each option can be exercised and convert into the underlying security. The exercise price should be provided per the security currency (i.e. if the security currency is AUD, the exercise price should be expressed in AUD). N/A *Expiry date The date on which the options expire or terminate. N/A *Details of the number and type of +security (including its ASX security code if the +security is quoted on ASX) that will be issued if an option is exercised For example, if the option can be exercised to receive one fully paid ordinary share with ASX security code ABC, please insert “One fully paid ordinary share (ASX:ABC)”. N/A

This appendix is not available as an online form Appendix 2A Please fill in and submit as a PDF announcement Application for quotation of +securities + See chapter 19 for defined terms 31 January 2020 Page 10 3C.9c Details of non-convertible +debt securities, +convertible debt securities, or redeemable preference shares/units Answer the questions in this section if you selected one of these security types in your response to Question 3C.2. Refer to Guidance Note 34 and the “Guide to the Naming Conventions and Security Descriptions for ASX Quoted Debt and Hybrid Securities” for further information on certain terms used in this section *Type of +security Select one item from the list ☐ Simple corporate bond ☐ Non-convertible note or bond ☐ Convertible note or bond ☐ Preference share/unit ☐ Capital note ☐ Hybrid security ☐ Other *+Security currency This is the currency in which the face value of the security is denominated. It will also typically be the currency in which interest or distributions are paid. N/A Face value This is the principal amount of each security. The face value should be provided per the security currency (i.e. if security currency is AUD, then the face value per security in AUD). N/A *Interest rate type Select one item from the list Select the appropriate interest rate type per the terms of the security. Definitions for each type are provided in the Guide to the Naming Conventions and Security Descriptions for ASX Quoted Debt and Hybrid Securities ☐ Fixed rate ☐ Floating rate ☐ Indexed rate ☐ Variable rate ☐ Zero coupon/no interest ☐ Other Frequency of coupon/interest payments per year Select one item from the list. ☐ Monthly ☐ Quarterly ☐ Semi-annual ☐ Annual ☐ No coupon/interest payments ☐ Other First interest payment date A response is not required if you have selected “No coupon/interest payments” in response to the question above on the frequency of coupon/interest payments Interest rate per annum Answer this question if the interest rate type is fixed. N/A *Is the interest rate per annum estimated at this time? Answer this question if the interest rate type is fixed. N/A If the interest rate per annum is estimated, then what is the date for this information to be announced to the market (if known) Answer this question if the interest rate type is fixed and your response to the previous question is “Yes”. Answer “Unknown” if the date is not known at this time. N/A

This appendix is not available as an online form Appendix 2A Please fill in and submit as a PDF announcement Application for quotation of +securities + See chapter 19 for defined terms 31 January 2020 Page 11 *Does the interest rate include a reference rate, base rate or market rate (e.g. BBSW or CPI)? Answer this question if the interest rate type is floating or indexed. N/A *What is the reference rate, base rate or market rate? Answer this question if the interest rate type is floating or indexed and your response to the previous question is “Yes”. N/A *Does the interest rate include a margin above the reference rate, base rate or market rate? Answer this question if the interest rate type is floating or indexed. N/A *What is the margin above the reference rate, base rate or market rate (expressed as a percent per annum) Answer this question if the interest rate type is floating or indexed and your response to the previous question is “Yes”. N/A *S128F of the Income Tax Assessment Act status applicable to the +security Select one item from the list For financial products which are likely to give rise to a payment to which s128F of the Income Tax Assessment Act applies, ASX requests issuers to confirm the s128F status of the security:  “s128F exempt” means interest payments are not taxable to non-residents;  “Not s128F exempt” means interest payments are taxable to non-residents;  “s128F exemption status unknown” means the issuer is unable to advise the status;  “Not applicable” means s128F is not applicable to this security ☐ s128F exempt ☐ Not s128F exempt ☐ s128F exemption status unknown ☐ Not applicable *Is the +security perpetual (i.e. no maturity date)? N/A *Maturity date Answer this question if the security is not perpetual N/A

This appendix is not available as an online form Appendix 2A Please fill in and submit as a PDF announcement Application for quotation of +securities + See chapter 19 for defined terms 31 January 2020 Page 12 *Select other features applicable to the +security Up to 4 features can be selected. Further information is available in the Guide to the Naming Conventions and Security Descriptions for ASX Quoted Debt and Hybrid Securities. ☐ Simple ☐ Subordinated ☐ Secured ☐ Converting ☐ Convertible ☐ Transformable ☐ Exchangeable ☐ Cumulative ☐ Non-Cumulative ☐ Redeemable ☐ Extendable ☐ Reset ☐ Step-Down ☐ Step-Up ☐ Stapled ☐ None of the above *Is there a first trigger date on which a right of conversion, redemption, call or put can be exercised (whichever is first)? N/A *If yes, what is the first trigger date Answer this question if your response to the previous question is “Yes”. N/A Details of the number and type of +security (including its ASX security code if the +security is quoted on ASX) that will be issued if the +securities to be quoted are converted, transformed or exchanged Answer this question if the security features include “converting”, “convertible”, “transformable” or “exchangeable”. For example, if the security can be converted into 1,000 fully paid ordinary shares with ASX security code ABC, please insert “1,000 fully paid ordinary shares (ASX:ABC)”. N/A Part 4 – Issue details Question No. Question Answer 4.1 *Have the +securities to be quoted been issued yet? Yes 4.1a *What was their date of issue? Answer this question if your response to Q4.1 is “Yes”. 9 December 2020 (US Time)/10 December 2020 (AU Time) 4.1b *What is their proposed date of issue? Answer this question if your response to Q4.1 is “No”. N/A 4.2 *Are the +securities to be quoted being issued for a cash consideration? If the securities are being issued for nil cash consideration, answer this question “No”. No

This appendix is not available as an online form Appendix 2A Please fill in and submit as a PDF announcement Application for quotation of +securities + See chapter 19 for defined terms 31 January 2020 Page 13 4.2a *In what currency is the cash consideration being paid For example, if the consideration is being paid in Australian Dollars, state AUD. Answer this question if your response to Q4.2 is “Yes”. N/A 4.2b *What is the issue price per +security Answer this question if your response to Q4.2 is “Yes” and by reference to the issue currency provided in your response to Q4.2a. Note: you cannot enter a nil amount here. If the securities are being issued for nil cash consideration, answer Q4.2 as “No” and complete Q4.2c and Q4.2d. N/A 4.2c Please describe the consideration being provided for the +securities to be quoted Answer this question if your response to Q4.2 is “No”. Vesting of RSUs: 230,570 RSUs vesting pursuant to the James Hardie Industries 2001 Equity Incentive Plan (2001 Plan) 4.2d Please provide an estimate (in AUD) of the value of the consideration being provided per +security for the +securities to be quoted Answer this question if your response to Q4.2 is “No”. An amount equal to the average trading price of securities on 9 December 2020 (AU Time) 4.3 Any other information the entity wishes to provide about the issue N/A Part 5 – Issued capital following quotation Following the quotation of the +securities the subject of this application, the issued capital of the entity will comprise: Note: the figures provided in the tables in sections 5.1 and 5.2 below are used to calculate the total market capitalisation of the entity published by ASX from time to time. Please make sure you include in the relevant table each class of securities issued by the entity. If you have quoted CHESS Depository Interests (CDIs) issued over your securities, include them in the table in section 5.1 and include in the table in section 5.2 any securities that do not have CDIs issued over them (and therefore are not quoted on ASX). Restricted securities should only be included in the table in section 5.1 if you are applying to have them quoted because the escrow period for the securities has expired or is about to expire. Otherwise include them in the table in section 5.2. 5.1 *Quoted +securities (total number of each +class of +securities quoted on ASX following the +quotation of the +securities the subject of this application) ASX security code and description Total number of +securities on issue Ordinary shares/CDIs 444,167,489

This appendix is not available as an online form Appendix 2A Please fill in and submit as a PDF announcement Application for quotation of +securities + See chapter 19 for defined terms 31 January 2020 Page 14 5.2 *Unquoted +securities (total number of each +class of +securities issued but not quoted on ASX): ASX security code and description Total number of +securities on issue 2001 Plan RSUs 598,701 (equivalent to 598,701 CDIs) 7,433 2001 Plan RSUs have been cancelled 2006 Plan RSUs 2,158,819 (equivalent to 2,158,819 CDIs) 18,918 2006 Plan RSUs have been cancelled Part 6 – Other Listing Rule requirements The questions in this Part should only be answered if you are an ASX Listing (ASX Foreign Exempt Listings and ASX Debt Listings do not need to complete this Part) and: - your response to Q2.1 is “Being issued under a dividend/distribution plan” and the response to Q2.2b.2 is “No”; or - your response to Q2.1 is “Other”. Note that if your response to Q2.1 is “Being issued as part of a transaction or transactions previously announced to the market in an Appendix 3B”, it is assumed that you will have provided the information referred to in this Part in the Appendix 3B. Question No. Question Answer 6.1 *Has the entity obtained, or is it obtaining, +security holder approval for the issue under listing rule 7.1? N/A 6.1a *Date of meeting or proposed meeting to approve the issue under listing rule 7.1 Answer this question if the response to Q6.1 is “Yes”. N/A 6.1b *Are any of the +securities being issued without +security holder approval using the entity’s 15% placement capacity under listing rule 7.1? Answer this question if the response to Q6.1 is “No”. N/A 6.1b.1 *How many +securities are being issued without +security holder approval using the entity’s 15% placement capacity under listing rule 7.1? Answer this question if the response to Q6.1 is “No” and the response to Q6.1b is “Yes”. Please complete and separately send by email to your ASX listings adviser a work sheet in the form of Annexure B to Guidance Note 21 confirming the entity has the available capacity under listing rule 7.1 to issue that number of securities. N/A 6.1c *Are any of the +securities being issued without +security holder approval using the entity’s additional 10% placement capacity under listing rule 7.1A (if applicable)? Answer this question if the response to Q6.1 is “No”. N/A

This appendix is not available as an online form Appendix 2A Please fill in and submit as a PDF announcement Application for quotation of +securities + See chapter 19 for defined terms 31 January 2020 Page 15 6.1c.1 *How many +securities are being issued without +security holder approval using the entity’s additional 10% placement capacity under listing rule 7.1A? Answer this question if the response to Q6.1 is “No” and the response to Q6.1c is “Yes”. Please complete and separately send by email to your ASX listings adviser a work sheet in the form of Annexure C to Guidance Note 21 confirming the entity has the available capacity under listing rule 7.1A to issue that number of securities. N/A Introduced 01/12/19, amended 31/01/20

EX-99.3

This appendix is not available as an online form Please fill in and submit as a PDF announcement +Rule 3.10.3A, 3.10.3B, 3.10.3C + See chapter 19 for defined terms 31 January 2020 Page 1 Appendix 3G Notification of issue, conversion or payment up of equity +securities Information or documents not available now must be given to ASX as soon as available. Information and documents given to ASX become ASX’s property and may be made public. If you are an entity incorporated outside Australia and you are issuing a new class of +securities other than CDIs, you will need to obtain and provide an International Securities Identification Number (ISIN) for that class. Further information on the requirement for the notification of an ISIN is available from the Create Online Forms page. ASX is unable to create the new ISIN for non-Australian issuers. *Denotes minimum information required for first lodgement of this form, with exceptions provided in specific notes for certain questions. The balance of the information, where applicable, must be provided as soon as reasonably practicable by the entity. Part 1 – Entity and announcement details Question no Question Answer 1.1 *Name of entity We (the entity here named) give notice of the issue, conversion or payment up of the following unquoted +securities. James Hardie Industries plc 1.2 *Registration type and number Please supply your ABN, ARSN, ARBN, ACN or another registration type and number (if you supply another registration type, please specify both the type of registration and the registration number). 097 829 895 1.3 *ASX issuer code JHX 1.4 *This announcement is Tick whichever is applicable. ☒ A new announcement ☐ An update/amendment to a previous announcement ☐ A cancellation of a previous announcement 1.4a *Reason for update Mandatory only if “Update” ticked in Q1.4 above. A reason must be provided for an update. N/A 1.4b *Date of previous announcement to this update Mandatory only if “Update” ticked in Q1.4 above. N/A 1.4c *Reason for cancellation Mandatory only if “Cancellation” ticked in Q1.4 above. N/A 1.4d *Date of previous announcement to this cancellation Mandatory only if “Cancellation” ticked in Q1.4 above. N/A 1.5 *Date of this announcement 16 December 2020 Exhibit 99.3

This appendix is not available as an online form Appendix 3G Please fill in and submit as a PDF announcement Notification of issue, conversion or payment up of equity +securities + See chapter 19 for defined terms 31 January 2020 Page 2 Part 2 – Type of issue Question No. Question Answer 2.1 *The +securities the subject of this notification are: Select whichever item is applicable. If you wish to notify ASX of different types of issues of securities, please complete a separate Appendix 3G for each type of issue. ☐ +Securities issued as a result of options being exercised or other +convertible +securities being converted and that are not to be quoted on ASX ☐ Partly paid +securities that have been fully paid up and that are not to be quoted on ASX ☒ +Securities issued under an +employee incentive scheme that are not being immediately quoted on ASX ☐ Other [please specify] If you have selected ‘other’ please provide the circumstances of the issue here: 2.2a.1 Please state the number and type of options that were exercised or other +convertible securities that were converted (including their ASX security code if available)? Answer this question if your response to Q2.1 is “securities issued as a result of options being exercised or other convertible securities being converted and that are not to be quoted on ASX”. N/A 2.2a.2 And the date the options were exercised or other +convertible securities were converted: Answer this question if your response to Q2.1 is “securities issued as a result of options being exercised or other convertible securities being converted and that are not to be quoted on ASX”. Note: If this occurred over a range of dates, enter the date the last of the options was exercised or convertible securities was converted. N/A 2.2b.1 Please state the number and type of partly paid +securities that were fully paid up (including their ASX security code if available)? Answer this question if your response to Q2.1 is “partly paid securities that have been paid up and that are not to be quoted on ASX”. N/A 2.2b.2 And the date the +securities were fully paid up: Answer this question if your response to Q2.1 is “partly paid securities that have been paid up and that are not to be quoted on ASX”. Note: If this occurred over a range of dates, enter the date the last of the securities was fully paid up. N/A

This appendix is not available as an online form Appendix 3G Please fill in and submit as a PDF announcement Notification of issue, conversion or payment up of equity +securities + See chapter 19 for defined terms 31 January 2020 Page 3 2.2c.1 Please state the number and type of +securities (including their ASX security code) issued under an +employee incentive scheme that are not being immediately quoted on ASX Answer this question if your response to Q2.1 is “securities issued under an employee incentive scheme that are not being immediately quoted on ASX”. 7,534 Restricted Stock Units (RSUs) being contractual entitlements granted to employees under the James Hardie Industries 2001 Equity Incentive Plan (2001 Plan) to be issued ordinary shares/CDIs upon satisfaction of certain conditions. 209,214 Restricted Stock Units (RSUs) granted under the James Hardie Industries Long Term Incentive Plan 2006 (2006 Plan), which comprise of the following  Grant of 82,131 Returned on Capital Employed (ROCE) RSUs, under the 2006 LTI Plan as part of the annual grant to the CEO as approved at the annual AGM for FY2021. ROCE RSUs are contractual entitlements to be issued ordinary shares/CDIs upon satisfaction of certain conditions; and  Grant of 127,083 Relative Total Shareholder Return (TSR) RSUs, under the 2006 LTI Plan as part of the annual grant to the CEO as approved at the AGM for FY2021. Relative TSR RSUs are contractual entitlements to be issued ordinary shares/CDIs upon satisfaction of certain conditions. 2.2c.2 *Please attach a document or provide details of a URL link for a document lodged with ASX detailing the terms of the +employee incentive scheme or a summary of the terms. Answer this question if your response to Q2.1 is “securities issued under an employee incentive scheme that are not being immediately quoted on ASX”. Refer to 2001 Plan https://ir.jameshardie.com.au/public/downloa d.jsp?id=5562 Refer to 2006 Plan https://ir.jameshardie.com.au/public/downloa d.jsp?id=5390 2.2c.3 *Are any of these +securities being issued to +key management personnel (KMP) or an +associate Answer this question if your response to Q2.1 is “securities issued under an employee incentive scheme that are not being immediately quoted on ASX”. Yes 2.2c.3.a *Provide details of the recipients and the number of +securities issued to each of them. Answer this question if your response to Q2.1 is “securities issued under an employee incentive scheme that are not being immediately quoted on ASX” and your response to Q2.2c.3 is “Yes”. Repeat the detail in the table below for each KMP involved in the issue. If the securities are being issued to the KMP, repeat the name of the KMP or insert “Same” in “Name of registered holder”. If the securities are being issued to an associate of a KMP, insert the name of the associate in “Name of registered holder”. Name of KMP Name of registered holder Number of +securities Jack Truong Jack Truong Same Same 82,131 ROCE RSUs 127,083 TSR RSUs

This appendix is not available as an online form Appendix 3G Please fill in and submit as a PDF announcement Notification of issue, conversion or payment up of equity +securities + See chapter 19 for defined terms 31 January 2020 Page 4 2.2d.1 *The purpose(s) for which the entity is issuing the +securities is: Answer this question if your response to Q2.1 is “Other”. You may select one or more of the items in the list. ☐ To raise additional working capital ☐ To fund the retirement of debt ☐ To pay for the acquisition of an asset [provide details below] ☐ To pay for services rendered [provide details below] ☐ Other [provide details below] Additional details: 2.2d.2 Please provide any further information needed to understand the circumstances in which you are notifying the issue of these +securities to ASX, including (if applicable) why the issue of the +securities has not been previously announced to the market in an Appendix 3B You must answer this question if your response to Q2.1 is “Other”. If there is no other information to provide, please answer “Not applicable” or “N/A”. N/A 2.3 *The +securities being issued are: Tick whichever is applicable ☒ Additional +securities in an existing unquoted class that is already recorded by ASX ("existing class") ☐ New +securities in an unquoted class that is not yet recorded by ASX ("new class") Part 3A – number and type of +securities being issued (existing class) Answer the questions in this part if your response to Q2.3 is “existing class”. Question No. Question Answer 3A.1 *ASX security code & description RSU 3A.2 *Number of +securities being issued 7,534 RSUs under the 2001 Plan 209,214 RSUs under the 2006 Plan 3A.3a *Will the +securities being issued rank equally in all respects from their issue date with the existing issued +securities in that class? Yes 3A.3b *Is the actual date from which the +securities will rank equally (non-ranking end date) known? Answer this question if your response to Q3A.3a is “No”. N/A 3A.3c *Provide the actual non-ranking end date Answer this question if your response to Q3A.3a is “No” and your response to Q3A.3b is “Yes”. N/A 3A.3d *Provide the estimated non-ranking end period Answer this question if your response to Q3A.3a is “No” and your response to Q3A.3b is “No”. N/A

This appendix is not available as an online form Appendix 3G Please fill in and submit as a PDF announcement Notification of issue, conversion or payment up of equity +securities + See chapter 19 for defined terms 31 January 2020 Page 5 3A.3e *Please state the extent to which the +securities do not rank equally:  in relation to the next dividend, distribution or interest payment; or  for any other reason Answer this question if your response to Q3A.3a is “No”. For example, the securities may not rank at all, or may rank proportionately based on the percentage of the period in question they have been on issue, for the next dividend, distribution or interest payment; or they may not be entitled to participate in some other event, such as an entitlement issue. N/A Part 3B – number and type of +securities being issued (new class) Answer the questions in this part if your response to Q2.3 is “new class”. Question No. Question Answer 3B.1 *Security description N/A 3B.2 *Security type Select one item from the list that best describes the securities the subject of this form. This will determine more detailed questions to be asked about the security later in this section. Select “ordinary fully or partly paid shares/units” for stapled securities or CDIs. For interest rate securities, please select the appropriate choice from either “Convertible debt securities” or “Non- convertible debt securities”. Select “Other” for performance shares/units and performance options/rights or if the selections available in the list do not appropriately describe the security being issued. ☐ Ordinary fully or partly paid shares/units ☐ Options ☐ +Convertible debt securities ☐ Non-convertible +debt securities ☐ Redeemable preference shares/units ☐ Other 3B.3 ISIN code Answer this question if you are an entity incorporated outside Australia and you are issuing a new class of securities other than CDIs. See also the note at the top of this form. N/A 3B.4 *Number of +securities being issued N/A 3B.5a *Will all the +securities issued in this class rank equally in all respects from the issue date? N/A 3B.5b *Is the actual date from which the +securities will rank equally (non-ranking end date) known? Answer this question if your response to Q3B.5a is “No”. N/A 3B.5c *Provide the actual non-ranking end date Answer this question if your response to Q3B.5a is “No” and your response to Q3B.5b is “Yes”. N/A 3B.5d *Provide the estimated non-ranking end period Answer this question if your response to Q3B.5a is “No” and your response to Q3B.5b is “No”. N/A

This appendix is not available as an online form Appendix 3G Please fill in and submit as a PDF announcement Notification of issue, conversion or payment up of equity +securities + See chapter 19 for defined terms 31 January 2020 Page 6 3B.5e *Please state the extent to which the +securities do not rank equally:  in relation to the next dividend, distribution or interest payment; or  for any other reason Answer this question if your response to Q3B.5a is “No”. For example, the securities may not rank at all, or may rank proportionately based on the percentage of the period in question they have been on issue, for the next dividend, distribution or interest payment; or they may not be entitled to participate in some other event, such as an entitlement issue. N/A 3B.6 Please attach a document or provide a URL link for a document lodged with ASX setting out the material terms of the +securities being issued You may cross reference a disclosure document, PDS, information memorandum, investor presentation or other announcement with this information provided it has been released to the ASX Market Announcements Platform. N/A 3B.7 *Have you received confirmation from ASX that the terms of the +securities are appropriate and equitable under listing rule 6.1? Answer this question only if you are an ASX Listing. (ASX Foreign Exempt Listings and ASX Debt Listings do not have to answer this question). If your response is “No” and the securities have any unusual terms, you should approach ASX as soon as possible for confirmation under listing rule 6.1 that the terms are appropriate and equitable. N/A 3B.8a Ordinary fully or partly paid shares/units details Answer the questions in this section if you selected this security type in your response to Question 3B.2. *+Security currency This is the currency in which the face amount of an issue is denominated. It will also typically be the currency in which distributions are declared. N/A *Will there be CDIs issued over the +securities? N/A *CDI ratio Answer this question if you answered “Yes” to the previous question. This is the ratio at which CDIs can be transmuted into the underlying security (e.g. 4:1 means 4 CDIs represent 1 underlying security whereas 1:4 means 1 CDI represents 4 underlying securities). N/A *Is it a partly paid class of +security? N/A *Paid up amount: unpaid amount Answer this question if answered “Yes” to the previous question. The paid up amount represents the amount of application money and/or calls which have been paid on any security considered ‘partly paid’ The unpaid amount represents the unpaid or yet to be called amount on any security considered ‘partly paid’. The amounts should be provided per the security currency (e.g. if the security currency is AUD, then the paid up and unpaid amount per security in AUD). N/A

This appendix is not available as an online form Appendix 3G Please fill in and submit as a PDF announcement Notification of issue, conversion or payment up of equity +securities + See chapter 19 for defined terms 31 January 2020 Page 7 *Is it a stapled +security? This is a security class that comprises a number of ordinary shares and/or ordinary units issued by separate entities that are stapled together for the purposes of trading. N/A 3B.8b Option details Answer the questions in this section if you selected this security type in your response to Question 3B.2. *+Security currency This is the currency in which the exercise price is payable. N/A *Exercise price The price at which each option can be exercised and convert into the underlying security. If there is no exercise price please answer as $0.00. The exercise price should be provided per the security currency (i.e. if the security currency is AUD, the exercise price should be expressed in AUD). N/A *Expiry date The date on which the options expire or terminate. N/A *Details of the number and type of +security (including its ASX security code if the +security is quoted on or recorded by ASX) that will be issued if an option is exercised For example, if the option can be exercised to receive one fully paid ordinary share with ASX security code ABC, please insert “One fully paid ordinary share (ASX:ABC)“. N/A 3B.8c Details of non-convertible +debt securities, +convertible debt securities, or redeemable preference shares/units Answer the questions in this section if you selected one of these security types in your response to Question 3B.2. Refer to Guidance Note 34 and the “Guide to the Naming Conventions and Security Descriptions for ASX Quoted Debt and Hybrid Securities” for further information on certain terms used in this section *Type of +security Select one item from the list ☐ Simple corporate bond ☐ Non-convertible note or bond ☐ Convertible note or bond ☐ Preference share/unit ☐ Capital note ☐ Hybrid security ☐ Other *+Security currency This is the currency in which the face value of the security is denominated. It will also typically be the currency in which interest or distributions are paid. N/A Face value This is the principal amount of each security. The face value should be provided per the security currency (i.e. if security currency is AUD, then the face value per security in AUD). N/A

This appendix is not available as an online form Appendix 3G Please fill in and submit as a PDF announcement Notification of issue, conversion or payment up of equity +securities + See chapter 19 for defined terms 31 January 2020 Page 8 *Interest rate type Select one item from the list Select the appropriate interest rate type per the terms of the security. Definitions for each type are provided in the Guide to the Naming Conventions and Security Descriptions for ASX Quoted Debt and Hybrid Securities ☐ Fixed rate ☐ Floating rate ☐ Indexed rate ☐ Variable rate ☐ Zero coupon/no interest ☐ Other Frequency of coupon/interest payments per year Select one item from the list. ☐ Monthly ☐ Quarterly ☐ Semi-annual ☐ Annual ☐ No coupon/interest payments ☐ Other First interest payment date A response is not required if you have selected “No coupon/interest payments” in response to the question above on the frequency of coupon/interest payments N/A N/A N/A *Is the interest rate per annum estimated at this time? Answer this question if the interest rate type is fixed. N/A If the interest rate per annum is estimated, then what is the date for this information to be announced to the market (if known) Answer this question if the interest rate type is fixed and your response to the previous question is “Yes”. Answer “Unknown” if the date is not known at this time. N/A *Does the interest rate include a reference rate, base rate or market rate (e.g. BBSW or CPI)? Answer this question if the interest rate type is floating or indexed N/A *What is the reference rate, base rate or market rate? Answer this question if the interest rate type is floating or indexed and your response to the previous question is “Yes”. N/A *Does the interest rate include a margin above the reference rate, base rate or market rate? Answer this question if the interest rate type is floating or indexed. N/A N/A N/A

This appendix is not available as an online form Appendix 3G Please fill in and submit as a PDF announcement Notification of issue, conversion or payment up of equity +securities + See chapter 19 for defined terms 31 January 2020 Page 9 *S128F of the Income Tax Assessment Act status applicable to the +security Select one item from the list For financial products which are likely to give rise to a payment to which s128F of the Income Tax Assessment Act applies, ASX requests issuers to confirm the s128F status of the security:  “s128F exempt” means interest payments are not taxable to non-residents;  “Not s128F exempt” means interest payments are taxable to non-residents;  “s128F exemption status unknown” means the issuer is unable to advise the status;  “Not applicable” means s128F is not applicable to this security ☐ s128F exempt ☐ Not s128F exempt ☐ s128F exemption status unknown ☐ Not applicable *Is the +security perpetual (i.e. no maturity date)? N/A *Maturity date Answer this question if the security is not perpetual N/A *Select other features applicable to the +security Up to 4 features can be selected. Further information is available in the Guide to the Naming Conventions and Security Descriptions for ASX Quoted Debt and Hybrid Securities. ☐ Simple ☐ Subordinated ☐ Secured ☐ Converting ☐ Convertible ☐ Transformable ☐ Exchangeable ☐ Cumulative ☐ Non-Cumulative ☐ Redeemable ☐ Extendable ☐ Reset ☐ Step-Down ☐ Step-Up ☐ Stapled ☐ None of the above *Is there a first trigger date on which a right of conversion, redemption, call or put can be exercised (whichever is first)? N/A *If yes, what is the first trigger date Answer this question if your response to the previous question is “Yes”. N/A Details of the number and type of +security (including its ASX security code if the +security is quoted on ASX) that will be issued if the securities to be quoted are converted, transformed or exchanged Answer this question if the security features include “converting”, “convertible”, “transformable” or “exchangeable”. For example, if the security can be converted into 1,000 fully paid ordinary shares with ASX security code ABC, please insert “1,000 fully paid ordinary shares (ASX:ABC)“. N/A

This appendix is not available as an online form Appendix 3G Please fill in and submit as a PDF announcement Notification of issue, conversion or payment up of equity +securities + See chapter 19 for defined terms 31 January 2020 Page 10 Part 4 – Issue details Question No. Question Answer 4.1 *Have the +securities been issued yet? Yes 4.1a *What was their date of issue? Answer this question if your response to Q4.1 is “Yes”. 9 December 2020 (US time) (2001 Plan) 5 November 2020 (US time) (2006 Plan) 4.1b *What is their proposed date of issue? Answer this question if your response to Q4.1 is “No”. N/A 4.2 *Are the +securities being issued for a cash consideration? If the securities are being issued for nil cash consideration, answer this question “No”. No 4.2a *In what currency is the cash consideration being paid For example, if the consideration is being paid in Australian Dollars, state AUD. Answer this question if your response to Q4.2 is “Yes”. N/A 4.2b *What is the issue price per +security Answer this question if your response to Q4.2 is “Yes” and by reference to the issue currency provided in your response to Q4.2a. Note: you cannot enter a nil amount here. If the securities are being issued for nil cash consideration, answer Q4.2 as “No” and complete Q4.2c. N/A 4.2c Please describe the consideration being provided for the +securities Answer this question if your response to Q4.2 is “No”. Total of 7,534 RSUs granted as awards under the 2001 Plan and intended to promote the Company’s long term financial interests by encouraging management to acquire an ownership position in the Company, aligning their interests with those of the Company’s security holders. Total of 209,214 RSUs granted as follows:  grant of 82,131 ROCE RSUs, under the 2006 LTI Plan as part of the annual grant to the CEO for FY2021; and  grant of 127,083 Relative TSR RSUs, under the 2006 LTI Plan as part of the annual grant to the CEO for FY2021. 4.3 Any other information the entity wishes to provide about the issue N/A

This appendix is not available as an online form Appendix 3G Please fill in and submit as a PDF announcement Notification of issue, conversion or payment up of equity +securities + See chapter 19 for defined terms 31 January 2020 Page 11 Part 5 – Unquoted +securities on issue Following the issue of the +securities the subject of this application, the unquoted issued +securities of the entity will comprise: Note: the figures provided in the table in section 5.1 below are used to calculate part of the total market capitalisation of the entity published by ASX from time to time. Please make sure you include in the table each class of unquoted securities issued by the entity. Restricted securities should be included in table 5.1. 5.1 *ASX security code and description *Total number of +securities on issue 2001 Plan RSUs 606,235 (equivalent to 606,235 CDIs) No 2001 Plan RSUs have been cancelled. 2006 Plan RSUs 2,158,819 (equivalent to 2,158,819 CDIs) No 2006 Plan RSUs have been cancelled. Part 6 – Other Listing Rule requirements The questions in this Part should only be answered if you are an ASX Listing (ASX Foreign Exempt Listings and ASX Debt Listings do not need to complete this Part) and: - your response to Q2.1 is “+securities issued under an +employee incentive scheme that are not being immediately quoted on ASX”; or - your response to Q2.1 is “Other” Question No. Question Answer 6.1 *Are the securities being issued under Listing Rule 7.2 exception 131 and therefore the issue does not need any security holder approval under Listing Rule 7.1? Answer this question if your response to Q2.1 is “securities issued under an employee incentive scheme that are not being immediately quoted on ASX”. Yes – 2006 Plan RSUs No – 2001 Plan RSUs 1 Exception 13 An issue of securities under an employee incentive scheme if within 3 years before the issue date: (a) in the case of a scheme established before the entity was listed – a summary of the terms of the scheme and the maximum number of equity securities proposed to be issued under the scheme were set out in the prospectus, PDS or information memorandum lodged with ASX under rule 1.1 condition 3; or (b) the holders of the entity’s ordinary securities have approved the issue of equity securities under the scheme as an exception to this rule. The notice of meeting must have included:  a summary of the terms of the scheme.  the number of securities issued under the scheme since the entity was listed or the date of the last approval under this rule;  the maximum number of +equity securities proposed to be issued under the scheme following the approval; and  a voting exclusion statement.

This appendix is not available as an online form Appendix 3G Please fill in and submit as a PDF announcement Notification of issue, conversion or payment up of equity +securities + See chapter 19 for defined terms 31 January 2020 Page 12 6.2 *Has the entity obtained, or is it obtaining, +security holder approval for the issue under listing rule 7.1? Answer this question if the response to Q6.1 is “No”. No 6.2a *Date of meeting or proposed meeting to approve the issue under listing rule 7.1 Answer this question if the response to Q6.1 is “No” and the response to Q6.2 is “Yes”. N/A 6.2b *Are any of the +securities being issued without +security holder approval using the entity’s 15% placement capacity under listing rule 7.1? Answer this question if the response to Q6.1 is “No” and the response to Q6.2 is “No”. Yes – 2001 Plan RSUs 6.2b.1 *How many +securities are being issued without +security holder approval using the entity’s 15% placement capacity under listing rule 7.1? Answer this question if the response to Q6.1 is “No”, the response to Q6.2 is “No” and the response to Q6.2b is “Yes”. Please complete and separately send by email to your ASX listings adviser a work sheet in the form of Annexure B to Guidance Note 21 confirming the entity has the available capacity under listing rule 7.1 to issue that number of securities. 7,534 RSUs 6.2c *Are any of the +securities being issued without +security holder approval using the entity’s additional 10% placement capacity under listing rule 7.1A (if applicable)? Answer this question if the response to Q6.1 is “No” and the response to Q6.2 is “No”. No 6.2c.1 *How many +securities are being issued without +security holder approval using the entity’s additional 10% placement capacity under listing rule 7.1A? Answer this question if the response to Q6.1 is “No”, the response to Q6.2 is “No” and the response to Q6.2c is “Yes”. Please complete and separately send by email to your ASX listings adviser a work sheet in the form of Annexure C to Guidance Note 21 confirming the entity has the available capacity under listing rule 7.1A to issue that number of securities. N/A Introduced 01/12/19; amended 31/01/20 Exception 13 is only available if and to the extent that the number of +equity securities issued under the scheme does not exceed the maximum number set out in the entity’s prospectus, PDS or information memorandum (in the case of (a) above) or in the notice of meeting (in the case of (b) above). Exception 13 ceases to be available if there is a material change to the terms of the scheme from those set out in the entity’s prospectus, PDS or information memorandum (in the case of (a) above) or in the notice of meeting (in the case of (b) above).

EX-99.4

Appendix 3Y

Change of Director’s Interest Notice

Exhibit 99.4

Rule 3.19A.2

Appendix 3Y

Change of Director’s Interest Notice

Information or documents not available now must be given to ASX as soon as available. Information and documents given to ASX become ASX’s property and may be made public.

Introduced 30/09/01 Amended 01/01/11

Name of entity James Hardie Industries plc

ARBN 097 829 895

We (the entity) give ASX the following information under listing rule 3.19A.2 and as agent for the director for the purposes of section 205G of the Corporations Act.

Name of Director	Jack TRUONG
Date of last notice	19 August 2019

Part 1 - Change of director’s relevant interests in securities

In the case of a trust, this includes interests in the trust made available by the responsible entity of the trust

Note: In the case of a company, interests which come within paragraph (i) of the definition of “notifiable interest of a director” should be disclosed in this part.

Direct or indirect interest	Direct
Nature of indirect interest (including registered holder) Note: Provide details of the circumstances giving rise to the relevant interest.	Not applicable
Date of change	Two separate events •21 August 2020 •28 August 2020
No. of securities held prior to change	0
Class	Ordinary shares/CUFS

+ See chapter 19 for defined terms.

01/01/2011    Appendix 3Y Page 1

Appendix 3Y

Change of Director’s Interest Notice

Number acquired	•28,426 ordinary shares/CUFs following vesting of 28,426 Return on Capital Employed Restricted Stock Units (ROCE RSUs) on 21 August 2020. •82,302 ordinary shares/CUFS following vesting of 82,302 Relative Total Shareholder Returns Restricted Stock Units (Relative TSR RSUs) on 28 August 2020.
Number disposed	12,596 ordinary shares/CUFs sold on 21 August 2020. 36,463 ordinary shares/CUFS sold on 28 August 2020.
Value/Consideration Note: If consideration is non-cash, provide details and estimated valuation	•Vesting of ROCE RSUs on 21 August 2020 – Nil •Vesting of Relative TSR RSUs on 28 August 2020 – Nil •Sale of ordinary shares/CUFS issued pursuant to vesting of ROCE RSUs on 21 August 2020 - A$396,036 •Sale of ordinary shares/CUFS issued pursuant to vesting of Relative TSR RSUs on 28 August 2020 - A$1,141,977
No. of securities held after change	61,669 ordinary shares/CUFS registered in the name of the Director (15,417 are in a holding lock until 21 August 2022)

+ See chapter 19 for defined terms.

Appendix 3Y Page 2    01/01/2011

Appendix 3Y

Change of Director’s Interest Notice

Nature of change Example: on-market trade, off-market trade, exercise of options, issue of securities under dividend reinvestment plan, participation in buy-back Four separate events: •28,426 ordinary shares/CUFs following vesting of 28,426 ROCE RSUs on 21 August 2020. •82,302 ordinary shares/CUFS following vesting of 82,302 Relative TSR RSUs on 28 August 2020. •The on-market sale of ordinary shares/CUFS issued pursuant to vesting of ROCE RSUs and Relative TSR RSUs as follows: ◦12,596 on 21 August 2020 ◦36,463 on 28 August 2020 ▪    The disposal ofordinary shares/CUFS required to fund US state and Federal withholding tax obligations (which are payable on vesting of RSUs).

Part 2 – Change of director’s interests in contracts

Note: In the case of a company, interests which come within paragraph (ii) of the definition of “notifiable interest of a director” should be disclosed in this part.

Detail of contract	Not applicable
Nature of interest	RSUs are contractual entitlements to be issued ordinary shares/CUFs upon satisfaction of certain conditions
Name of registered holder (if issued securities)	Not applicable
Date of change	Two separate events •21 August 2020 – Vesting and cancellation of RSUs •28 August 2020 – Vesting of RSUs

+ See chapter 19 for defined terms.

01/01/2011    Appendix 3Y Page 3

Appendix 3Y

Change of Director’s Interest Notice

No. and class of securities to which interest related prior to change Note: Details are only required for a contract in relation to which the interest has changed	ROCE RSUs •34,110 ROCE RSUs with a vesting date of 21/08/20 •34,110 ROCE RSUs vesting rateably on 21/08/20, 21/08/21 and 21/08/22 •55,938 ROCE RSUs with a vesting date of 17/08/21 •9,519 ROCE RSUs with a vesting date of 17/08/21 •75,545 ROCE RSUs with a vesting date of 17/08/22 TSR RSUs •61,726 TSR RSUs with a vesting date of 21/08/20 •61,726 TSR RSUs vesting rateably on 21/08/20, 21/08/21 and 21/08/22 •106,058 TSR RSUs with a vesting date of 17/08/21. •18,518 TSR RSUs with a vesting date of 17/08/21. •139,432 TSR RSUs with a vesting date of 17/08/22.
Interest acquired	Not applicable
Interest disposed	•28,426 ROCE RSUs vested on 21 August 2020. •17,054 ROCE RSUs were cancelled on 21 August 2020. •82,302 Relative TSR RSUs vested on 28 August 2020.
Value/Consideration Note: If consideration is non-cash, provide details and an estimated valuation	No cash consideration was paid to exercise the RSUs.

+ See chapter 19 for defined terms.

Appendix 3Y Page 4    01/01/2011

Appendix 3Y

Change of Director’s Interest Notice

Interest after change ROCE RSUs •22,740 ROCE RSUs vesting rateably on 21/08/21 and 21/08/22 •55,938 ROCE RSUs with a vesting date of 17/08/21 •9,519 ROCE RSUs with a vesting date of 17/08/21 •75,545 ROCE RSUs with a vesting date of 17/08/22 TSR RSUs •41,150 TSR RSUs vesting rateably on 21/08/21 and 21/08/22 •106,058 TSR RSUs with a vesting date of 17/08/21. •18,518 TSR RSUs with a vesting date of 17/08/21. •139,432 TSR RSUs with a vesting date of 17/08/22.

Part 3 – +Closed period

Were the interests in the securities or contracts detailed above traded during a +closed period where prior written clearance was required?	No
If so, was prior written clearance provided to allow the trade to proceed during this period?	Not applicable
If prior written clearance was provided, on what date was this provided?	Not applicable

+ See chapter 19 for defined terms.

01/01/2011    Appendix 3Y Page 5

EX-99.5

Appendix 3Y

Change of Director’s Interest Notice

Exhibit 99.5

Rule 3.19A.2

Appendix 3Y

Change of Director’s Interest Notice

Information or documents not available now must be given to ASX as soon as available. Information and documents given to ASX become ASX’s property and may be made public.

Introduced 30/09/01 Amended 01/01/11

Name of entity James Hardie Industries plc

ARBN 097 829 895

We (the entity) give ASX the following information under listing rule 3.19A.2 and as agent for the director for the purposes of section 205G of the Corporations Act.

Name of Director	Jack TRUONG
Date of last notice	18 December 2020

Part 1 - Change of director’s relevant interests in securities

In the case of a trust, this includes interests in the trust made available by the responsible entity of the trust

Note: In the case of a company, interests which come within paragraph (i) of the definition of “notifiable interest of a director” should be disclosed in this part.

Direct or indirect interest	Direct
Nature of indirect interest (including registered holder) Note: Provide details of the circumstances giving rise to the relevant interest.	Not applicable
Date of change	Not applicable
No. of securities held prior to change	61,669 ordinary shares/CUFS registered in the name of the Director (15,417 are in a holding lock until 21 August 2022)
Class	Ordinary shares/CUFS
Number acquired	Not applicable
Number disposed	Not applicable

+ See chapter 19 for defined terms.

01/01/2011    Appendix 3Y Page 1

Appendix 3Y

Change of Director’s Interest Notice

Value/Consideration Note: If consideration is non-cash, provide details and estimated valuation	Not applicable
No. of securities held after change	Current relevant interest is: 61,119 ordinary shares/CUFS registered in the name of the Director (15,417 are in a holding lock until 21 August 2022)
Nature of change Example: on-market trade, off-market trade, exercise of options, issue of securities under dividend reinvestment plan, participation in buy-back	Not applicable

Part 2 – Change of director’s interests in contracts

Note: In the case of a company, interests which come within paragraph (ii) of the definition of “notifiable interest of a director” should be disclosed in this part.

Detail of contract	Not applicable
Nature of interest	Restricted Stock Units (RSUs) are contractual entitlements to be issued ordinary shares/CUFs upon satisfaction of certain conditions
Name of registered holder (if issued securities)	Not applicable
Date of change	5 November 2020 (US time) – Grant of RSUs

+ See chapter 19 for defined terms.

Appendix 3Y Page 2    01/01/2011

Appendix 3Y

Change of Director’s Interest Notice

No. and class of securities to which interest related prior to change Note: Details are only required for a contract in relation to which the interest has changed	Return on Capital Employed (ROCE) RSUs ROCE RSUs subject to a ROCE hurdle based on the company’s average ROCE performance over a specified period and the Remuneration Committee’s potential exercise of negative discretion: •22,740 ROCE RSUs vesting rateably on 21/08/21 and 21/08/22 •55,938 ROCE RSUs with a vesting date of 17/08/21 •9,519 ROCE RSUs with a vesting date of 17/08/21 •75,545 ROCE RSUs with a vesting date of 17/08/22 Relative Total Shareholder Return (TSR) RSUs TSR RSUs subject to a TSR hurdle based on the company’s TSR performance relative to its peer group: •41,150 TSR RSUs vesting rateably on 21/08/21 and 21/08/22 •106,058 TSR RSUs with a vesting date of 17/08/21. •18,518 TSR RSUs with a vesting date of 17/08/21. •139,432 TSR RSUs with a vesting date of 17/08/22.
Interest acquired	Two separate grants of RSUs, as part of the FY2021 long-term incentive to the CEO pursuant to the 2006 Plan, approved by shareholders at the 2020 Annual General Meeting: •127,083 TSR RSUs. These RSUs are subject to a TSR based hurdle measured over a performance period of 3 years from the grant date; and •82,131 ROCE RSUs. These are subject to a ROCE hurdle based on the company’s average ROCE performance in FY2021-2023 and the Remuneration Committee’s exercise of negative discretion three years from the grant date.
Interest disposed	Not applicable

+ See chapter 19 for defined terms.

01/01/2011    Appendix 3Y Page 3

Appendix 3Y

Change of Director’s Interest Notice

Value/Consideration Note: If consideration is non-cash, provide details and an estimated valuation

Nil

Interest after change

Return on Capital Employed (ROCE) RSUs ROCE RSUs subject to a ROCE hurdle based on the company’s average ROCE performance over a specified period and the Remuneration Committee’s potential exercise of negative discretion: •22,740 ROCE RSUs vesting rateably on 21/08/21 and 21/08/22 •55,938 ROCE RSUs with a vesting date of 17/08/21 •9,519 ROCE RSUs with a vesting date of 17/08/21 •75,545 ROCE RSUs with a vesting date of 17/08/22 •82,131 ROCE RSUs with a vesting date of 17/08/23 Relative Total Shareholder Return (TSR) RSUs TSR RSUs subject to a TSR hurdle based on the company’s TSR performance relative to its peer group: •41,150 TSR RSUs vesting rateably on 21/08/21 and 21/08/22 •106,058 TSR RSUs with a vesting date of 17/08/21 •18,518 TSR RSUs with a vesting date of 17/08/21 •139,432 TSR RSUs with a vesting date of 17/08/22 •127,083 TSR RSUs with a vesting date of 17/08/23

Part 3 – +Closed period

Were the interests in the securities or contracts detailed above traded during a +closed period where prior written clearance was required?	No
If so, was prior written clearance provided to allow the trade to proceed during this period?	Not applicable
If prior written clearance was provided, on what date was this provided?	Not applicable

+ See chapter 19 for defined terms.

Appendix 3Y Page 4    01/01/2011

EX-99.6

James Hardie Industries plc Europa House 2nd Floor, Harcourt Centre Harcourt Street, Dublin 2, D02 WR20, Ireland T: +353 (0) 1 411 6924 F: +353 (0) 1 479 1128 James Hardie Industries plc is a limited liability company incorporated in Ireland with its registered office at Europa House 2nd Floor, Harcourt Centre, Harcourt Street, Dublin 2, D02 WR20, Ireland. Directors: Michael Hammes (Chairman, USA), Andrea Gisle Joosen (Sweden), David Harrison (USA), Persio Lisboa (USA), Anne Lloyd (USA), Moe Nozari (USA), Rada Rodriguez (Sweden), Nigel Stein (UK), Harold Wiens (USA). Chief Executive Officer and Director: Jack Truong (USA) Company number: 485719 ARBN: 097 829 895 Dear Sir/Madam Substantial Holding Notice As required under ASX Listing Rule 3.17.3 please see attached a copy of the substantial holding notice received by James Hardie on 17 December 2020. Yours faithfully Joseph C. Blasko General Counsel & Company Secretary This announcement has been authorised for release by the General Counsel and Company Secretary, Mr Joseph C. Blasko. 18 December 2020 The Manager Company Announcements Office Australian Securities Exchange Limited 20 Bridge Street SYDNEY NSW 2000 Exhibit 99.6

James Hardie Industries plc Group Company Secretary Second Floor, Europa House Harcourt Centre Harcourt Street Dublin 2, D02 WR20 Ireland 17 December 2020 Dear Sir/Madam Re: Disclosure of holding above 5% threshold Pursuant to Section 1048 and/or Section 1050 of the Companies Act 2014 (“the Act”), Bennelong Funds Management Group Pty Ltd1 (and its Subsidiaries and Affiliates2 as listed in Annexure A) (“BFMG”) discloses a relevant share capital holding in James Hardie Industries plc. As at 16 December 2020, BFMG held an interest in James Hardie Industries plc Chess Depositary Interests of 5.63% ordinary share capital. This figure is based on a holding of 25,018,691 shares and a total of 444,167,489 shares on issue. The registered holders of these shares are as follows: Registered holder Number of CDIs held BNP Paribas 1,973,825 Citibank 16,121,324 JPMorgan 1,928,514 NAB Asset Servicing 1,447,010 Northern Trust 1,456,350 UBS 2,091,668 BFMG advises that a further disclosure under Section 1048 and/or Section 1050 of the Act should have been made on or after 21 February 2019; at which time, BFMG held an interest in James Hardie Industries plc Chess Depositary Interests of 3.14% ordinary share capital. This figure was based on a holding of 13,938,016 shares and a total of 443,936,919 shares on issue. The registered holders of these shares were as follows: Registered holder Number of CDIs held BNP Paribas 427,689 Citibank 803,416 JPMorgan 2,934,222 NAB Asset Servicing 667,489 RBC 4,916,760 UBS 4,188,440 1 Bennelong Funds Management Group Pty Ltd advises that substantial shareholding reporting will now be performed on a consolidated basis to include the relevant interests of all Subsidiaries and Affiliates listed in Annexure A. Previously, the relevant interests of Subsidiaries and Affiliates were treated separately for the purposes of substantial shareholding reporting. 2 For the purposes of this Notice and pursuant to s 608(3) of the Corporations Act 2001 (Cth), ‘Affiliates’ means any body corporate or managed investment scheme in which the Group’s voting power is over 20% or which is controlled by the Group.

Yours sincerely Jeff Phillips Company Secretary

Annexure A Subsidiaries BennBridge Ltd (Company Number 10480050) Bennelong Funds Management Ltd (ACN 111 214 085) Affiliates 4D Infrastructure Pty Ltd (ACN 604 979 259) BambuBlack Asset Management LLP (OC427173) Bennelong Australian Equity Partners Pty Ltd (ACN 131 665 122) Bennelong Long Short Equity Management Pty Ltd (ACN 118 724 173) Kardinia Capital Pty Ltd (ACN 152 003 186) Pembroke EM LLP (OC420444) Quay Global Investors Pty Ltd (ACN 163 911 859) Skerryvore Asset Management LLP (OC429371) Tellworth Investments LLP (OC417414) Touchstone Asset Management Pty Ltd (ACN 605 911 519)