UNITED STATES 

SECURITIES AND EXCHANGE COMMISSION 

Washington, D.C. 20549

SCHEDULE 13G

Under the Securities Exchange Act of 1934

(Amendment No.      )*

Molecular Data Inc. 

(Name of Issuer)

Class A ordinary shares, par value US$0.00005 per share 

(Title of Class of Securities)

60852L106** 

(CUSIP Number)

June 30, 2020 

(Date of Event which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

¨ Rule 13d-1(b)

x Rule 13d-1(c)

¨ Rule 13d-1(d)

*The remainder of this cover page shall be filled out for a reporting person’s initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter the disclosures provided in a prior cover page.

**This CUSIP number applies to the Issuer’s American depositary shares, each representing three Class A Ordinary Shares of the Issuer.

The information required in the remainder of this cover page shall not be deemed to be “filed” for the purpose of Section 18 of the Securities Exchange Act of 1934 (“Act”) or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).

SCHEDULE 13G

CUSIP No.           60852L106

1	Names of Reporting Persons TR Grand Fund Inc.
2	Check the Appropriate Box if a Member of a Group (See Instructions) (a)   ¨ (b)   ¨
3	SEC Use Only
4	Citizenship or Place of Organization Cayman Islands

	5	Sole Voting Power
Number of Shares Beneficially Owned by Each Reporting Person With:		0
	6	Shared Voting Power 24,987,925 (1)
	7	Sole Dispositive Power 0
	8	Shared Dispositive Power
		24,987,925 (1)

9	Aggregate Amount Beneficially Owned by Each Reporting Person 24,987,925 (1)
10	Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) ¨
11	Percent of Class Represented by Amount in Row (9) 7.5% (2)
12	Type of Reporting Person (See Instructions) CO

(1) Number of shares is number of Class A ordinary shares, par value US$0.00005 per share (“Class A Ordinary Shares”), of Molecular Data Inc. (the “Issuer”) held by TR Grand Fund Inc.

(2) This percentage is calculated based on 334,099,682 Class A Ordinary Shares of the Issuer outstanding as of October 9, 2020, as disclosed in the Securities Purchase Agreement included as Exhibit 99.2 to the Issuer’s Form 6-K filed with the Securities and Exchange Commission on October 13, 2020.

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SCHEDULE 13G

CUSIP No.           60852L106

1	Names of Reporting Persons TR Dingsheng (Wuhan) Investment Center (Limited Partner)
2	Check the Appropriate Box if a Member of a Group (See Instructions) (a)   ¨ (b)   ¨
3	SEC Use Only
4	Citizenship or Place of Organization People’s Republic of China

	5	Sole Voting Power
Number of Shares Beneficially Owned by Each Reporting Person With:		0
	6	Shared Voting Power 24,987,925 (1)
	7	Sole Dispositive Power 0
	8	Shared Dispositive Power
		24,987,925 (1)

9	Aggregate Amount Beneficially Owned by Each Reporting Person 24,987,925 (1)
10	Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) ¨
11	Percent of Class Represented by Amount in Row (9) 7.5% (2)
12	Type of Reporting Person (See Instructions) PN

(1) Number of shares is number of Class A Ordinary Shares of the Issuer held by TR Grand Fund Inc.

(2) This percentage is calculated based on 334,099,682 Class A Ordinary Shares of the Issuer outstanding as of October 9, 2020, as disclosed in the Securities Purchase Agreement included as Exhibit 99.2 to the Issuer’s Form 6-K filed with the Securities and Exchange Commission on October 13, 2020.

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SCHEDULE 13G

CUSIP No.           60852L106

1	Names of Reporting Persons Tianfeng Huiying (Wuhan) Investment Management Co., Ltd.
2	Check the Appropriate Box if a Member of a Group (See Instructions) (a)   ¨ (b)   ¨
3	SEC Use Only
4	Citizenship or Place of Organization People’s Republic of China

	5	Sole Voting Power
Number of Shares Beneficially Owned by Each Reporting Person With:		0
	6	Shared Voting Power 24,987,925 (1)
	7	Sole Dispositive Power 0
	8	Shared Dispositive Power
		24,987,925 (1)

9	Aggregate Amount Beneficially Owned by Each Reporting Person 24,987,925 (1)
10	Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) ¨
11	Percent of Class Represented by Amount in Row (9) 7.5% (2)
12	Type of Reporting Person (See Instructions) CO

(1) Number of shares is number of Class A Ordinary Shares of the Issuer held by TR Grand Fund Inc.

(2) This percentage is calculated based on 334,099,682 Class A Ordinary Shares of the Issuer outstanding as of October 9, 2020, as disclosed in the Securities Purchase Agreement included as Exhibit 99.2 to the Issuer’s Form 6-K filed with the Securities and Exchange Commission on October 13, 2020.

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Item 1.

(a)	Name of Issuer:
	Molecular Data Inc.

(b)	Address of Issuer’s Principal Executive Offices:
	5/F, Building 12, 1001 North Qinzhou Road  Xuhui District, Shanghai 201109  People’s Republic of China

Item 2.

(a)	Name of Person Filing:
	This Schedule 13G is filed by TR Grand Fund Inc. (“TR Grand”), a company organized under the laws of the Cayman Islands, TR Dingsheng (Wuhan) Investment Center (Limited Partner) (“TR Dingsheng”), a limited partnership organized under the laws of the People’s Republic of China, and Tianfeng Huiying (Wuhan) Investment Management Co., Ltd. (“Tianfeng Huiying”, together with TR Grand and TR Dingsheng, the “Reporting Persons”), a company organized under the laws of the People’s Republic of China.
	TR Grand is a wholly-owned subsidiary of TR Dingsheng, whose general partner is Tianfeng Huiying.

(b)	Address of Principal Business Office or, if None, Residence:
	The address of the principal business office for TR Grand, TR Dingsheng and Tianfeng Huiying is Floor 46, Poly Plaza, No. 99 Zhongnan Road, Wuchang District, Wuhan City, Hubei Province, People’s Republic of China.

(c)	Citizenship:
	See Item 2(a)

(d)	Title of Class of Securities:
	Class A Ordinary Shares, par value US$0.00005 per share, of the Issuer

(e)	CUSIP No.:
	60852L106

Item 3. If this statement is filed pursuant to §§240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:

(a) ¨ Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);

(b) ¨ Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);

(c) ¨ Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);

(d) ¨ Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C 80a-8);

(e) ¨ An investment adviser in accordance with §240.13d-1(b)(1)(ii)(E);

(f) ¨ An employee benefit plan or endowment fund in accordance with §240.13d-1(b)(1)(ii)(F);

(g) ¨ A parent holding company or control person in accordance with §240.13d-1(b)(1)(ii)(G);

(h) ¨ A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);

(i) ¨ A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);

(j) ¨ A non-U.S. institution in accordance with §240.13d-1(b)(1)(ii)(J);

(k) ¨ Group, in accordance with §240.13d-1(b)(1)(ii)(K). If filing as a non-U.S. institution in accordance with §240.13d-1(b)(1)(ii)(J), please specify the type of institution:                

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Item 4. Ownership.

(a) See Item 9 of the cover pages to this Schedule 13G for the aggregate number of Class A Ordinary Shares that are beneficially owned by each Reporting Person as of December 31, 2020.

(b) See Item 11 of the cover pages to this Schedule 13G for the percentage of Class A Ordinary Shares that are beneficially owned by each Reporting Person as of December 31, 2020.

(c) See Items 5 through 8 of the cover pages to this Schedule 13G for the number of Class A Ordinary Shares that are beneficially owned by each Reporting Person as of December 31, 2020 as to which there is sole or shared power to vote or direct the vote, and sole or shared power to dispose or direct the disposition.

Item 5.	Ownership of Five Percent or Less of a Class.
	If this statement is being filed to report the fact that as of the date hereof the reporting person has ceased to be the beneficial owner of more than five percent of the class of securities, check the following ¨.

Item 6.	Ownership of More than Five Percent on Behalf of Another Person.
	Not applicable.

Item 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
	Not applicable.

Item 8.	Identification and Classification of Members of the Group.
	Not applicable.

Item 9.	Notice of Dissolution of Group.
	Not applicable.

Item 10.	Certifications.
	By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect.

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SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

Dated: February 5, 2021

TR GRAND FUND INC.
By:	/s/ WANG Yeming
	WANG Yeming
	Director
TR DINGSHENG (WUHAN) INVESTMENT CENTER (LIMITED PARTNER)
By:	Tianfeng Huiying (Wuhan) Investment Management Co., Ltd., its general partner
By:	/s/ WANG Yeming
	WANG Yeming
	Compliance Officer
TIANFENG HUIYING (WUHAN) INVESTMENT MANAGEMENT CO., LTD.
By:	/s/ WANG Yeming
	WANG Yeming
	Compliance Officer

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EXHIBIT INDEX

Exhibit No.	Description
99.1	Joint Filing Agreement, dated February 5, 2021, by and among TR Grand Fund Inc., TR Dingsheng (Wuhan) Investment Center (Limited Partner) and Tianfeng Huiying (Wuhan) Investment Management Co., Ltd.

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