Exhibit 99.6

Notice to ASX/LSE

Shareholdings of persons discharging managerial responsibility (PDMR) / Key Management Personnel (KMP)

2 May 2019

Rio Tinto notifies the London Stock Exchange (LSE) of PDMR/KMP interests in securities of Rio Tinto plc, in compliance with the EU Market Abuse Regulation. As part of its dual listed company structure, Rio Tinto voluntarily notifies the Australian Securities Exchange (ASX) of material dealings in Rio Tinto plc shares by PDMR/KMP and both the ASX and the LSE of material dealings by PDMR/KMP in Rio Tinto Limited securities.

UK Share Plan (UKSP)

The UK Share Plan is an HMRC approved Share Incentive Plan under which qualifying UK employees are able to purchase, on a quarterly basis, Rio Tinto plc ordinary shares of 10p each (‘shares’). Shares are purchased out of monthly deductions from salary and participants are allocated an equivalent number of shares free of charge (‘matching shares’). Qualifying UK employees are also awarded Free shares once a year.

Rio Tinto plc shares held in the UKSP are subject to dividend reinvestment whereby cash dividends are used to buy Rio Tinto plc shares in the market.

The following PDMRs/KMPs were awarded Free shares on 30 April 2019:

Security	Name of PDMR / KMP	Number of shares awarded	Price per share GBP
Rio Tinto plc	Baatar, Bold	79	45.085
Rio Tinto plc	Jacques, Jean-Sébastien	79	45.085
Rio Tinto plc	Soirat, Arnaud	79	45.085
Rio Tinto plc	Stausholm, Jakob	26	45.085

LEI: 213800YOEO5OQ72G2R82Classification: 2.2. Inside information disclosed under article 19 of the Market Abuse Regulation

Steve Allen Group Company Secretary	Tim Paine Joint Company Secretary
Rio Tinto plc 6 St James’s Square London SW1Y 4AD T +44 20 7781 2058 Registered in England No. 719885	Rio Tinto Limited Level 7, 360 Collins Street Melbourne 3000 Australia T +61 3 9283 3333 Registered in Australia ABN 96 004 458 404