Under Securities Exchange Act of 1934
(Amendment No. 7)*

(Name of Issuer)

(Title of Class of Securities)

(CUSIP Number)

(Name, Address and Telephone Number of Person
Authorized to Receive Notices and Communications)

(Date of Event Which Requires Filing of this Statement)

If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because of Rule 13d-1(e), 13d-1(f) or 13d-1(g), check the following box. o

Note. Schedules filed in paper format shall include a signed original and five copies of the schedule, including all exhibits. See Rule §240.13d-7(b) for other parties to whom copies are to be sent.

*                                       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 disclosures provided in a prior cover page.

**                                  Not for trading, but only in connection with the registration of American Depositary Shares each representing 1/2 Class A Common Share.

***                           This CUSIP applies to the American Depositary Shares, each representing 1/2 Class A Common Share.

The information required on 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 (the "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).

(1)  Consists of (i) 526,721 Class A Common Shares held by Time Intelligent Finance Limited; (ii) 805,100 Class C Common Shares held by Time Intelligent Finance Limited; (iii) 2,264,140 Class A Common Shares and 1,256,820 American Depositary Shares (representing 628,410 Class A Common Shares) held by ShanghaiMed, Inc., which is wholly owned by Time Intelligent Finance Limited; (iv) 150,000 Class A Common Shares issuable upon exercise of options held by ShanghaiMed, Inc. within 60 days of the date of this Amendment No. 6; and (v) 500,000 Class A Common Shares issuable upon exercise of options held by Mr. Lee Ligang Zhang within 60 days of the date of this Amendment No. 6.

The rights of the holders of Class A and Class C Common Shares are identical, except with respect to voting and conversion rights. Each Class A Common Share will be entitled to one vote per share. Each Class C Common Share will be entitled to 15 votes per share and is convertible at any time into one Class A Common Share.

(2)  Percentage calculated based on (i) 33,572,694 Class A Common Shares (excluding Class A Common Shares issued to the depositary and reserved for exercise of options) and 805,100 Class C Common Shares outstanding as of February 28, 2018, and (ii) 150,000 Class A Common Shares issuable upon exercise of options held by ShanghaiMed, Inc. and 500,000 Class A Common Shares issuable upon exercise of options held by Mr. Lee Ligang Zhang, in each case, within 60 days of the date of this Amendment No. 6. 

2

(1)  Consists of (i) 526,721 Class A Common Shares held by Time Intelligent Finance Limited; (ii) 805,100 Class C Common Shares held by Time Intelligent Finance Limited; (iii) 2,264,140 Class A Common Shares and 1,256,820 American Depositary Shares (representing 628,410 Class A Common Shares) held by ShanghaiMed, Inc.; and (iv) 150,000 Class A Common Shares issuable upon exercise of options held by ShanghaiMed, Inc. within 60 days of the date of this Amendment No. 6. As Time Intelligent Finance Limited is wholly owned by Time Evergreen Company Limited, which in turn is wholly owned by TMF (Cayman) Ltd. as trustee of Zhang’s Family Trust with Mr. Lee Ligang Zhang as settlor, Time Intelligent Finance Limited shares the voting and dispositive power of such 4,374,371 Common Shares with Time Evergreen Company Limited and TMF (Cayman) Ltd.

(2)  Percentage calculated based on (i) 33,572,694 Class A Common Shares (excluding Class A Common Shares issued to the depositary and reserved for exercise of options) and 805,100 Class C Common Shares outstanding as of February 28, 2018, and (ii) 150,000 Class A Common Shares issuable upon exercise of options held by ShanghaiMed, Inc. within 60 days of the date of this Amendment No. 6.

3

(1)  Consists of (i) 2,264,140 Class A Common Shares and 1,256,820 American Depositary Shares (representing 628,410 Class A Common Shares) held by ShanghaiMed, Inc.; and (ii) 150,000 Class A Common Shares issuable upon exercise of options held by ShanghaiMed, Inc. within 60 days of the date of this Amendment No. 6. As ShanghaiMed, Inc. is wholly owned by Time Intelligent Finance Limited, it shares the voting and dispositive power of such 3,042,550 Common Shares with Time Intelligent Finance Limited, Time Evergreen Company Limited and TMF (Cayman) Ltd. 

(2)  Percentage calculated based on (i) 33,572,694 Class A Common Shares (excluding Class A Common Shares issued to the depositary and reserved for exercise of options) and 805,100 Class C Common Shares outstanding as of February 28, 2018, and (ii) 150,000 Class A Common Shares issuable upon exercise of options held by ShanghaiMed, Inc. within 60 days of the date of this Amendment No. 6.

4

(1)  Consists of (i) 526,721 Class A Common Shares held by Time Intelligent Finance Limited; (ii) 805,100 Class C Common Shares held by Time Intelligent Finance Limited; (iii) 2,264,140 Class A Common Shares and 1,256,820 American Depositary Shares (representing 628,410 Class A Common Shares) held by ShanghaiMed, Inc.; and (iv) 150,000 Class A Common Shares issuable upon exercise of options held by ShanghaiMed, Inc. within 60 days of the date of this Amendment No. 6. TMF (Cayman) Ltd. is the trustee of Zhang’s Family Trust with Mr. Lee Ligang Zhang as settlor. As TMF (Cayman) Ltd. holds all of the equity interests in Time Evergreen Company Limited which in turn holds all of the equity interests in Time Intelligent Finance Limited, TMF (Cayman) Ltd. shares the voting and dispositive power of such 4,374,371 Common Shares with Time Evergreen Company Limited and Time Intelligent Finance Limited.

(2)  Percentage calculated based on (i) 33,572,694 Class A Common Shares (excluding Class A Common Shares issued to the depositary and reserved for exercise of options) and 805,100 Class C Common Shares outstanding as of February 28, 2018, and (ii) 150,000 Class A Common Shares issuable upon exercise of options held by ShanghaiMed, Inc. within 60 days of the date of this Amendment No. 6.

5

(1)  Consists of (i) 526,721 Class A Common Shares held by Time Intelligent Finance Limited; (ii) 805,100 Class C Common Shares held by Time Intelligent Finance Limited; (iii) 2,264,140 Class A Common Shares and 1,256,820 American Depositary Shares (representing 628,410 Class A Common Shares) held by ShanghaiMed, Inc.; and (iv) 150,000 Class A Common Shares issuable to ShanghaiMed, Inc. upon its exercise of options within 60 days of the date of this Amendment No. 6. As Time Evergreen Company Limited holds all of the equity interests in Time Intelligent Finance Limited and is wholly owned by TMF (Cayman) Ltd. as trustee of Zhang’s Family Trust with Mr. Lee Ligang Zhang as settlor, Time Evergreen Company shares the voting and dispositive power of such 4,374,371 Common Shares with Time Intelligent Finance Limited and TMF (Cayman) Ltd.

(2)  Percentage calculated based on (i) 33,572,694 Class A Common Shares (excluding Class A Common Shares issued to the depositary and reserved for exercise of options) and 805,100 Class C Common Shares outstanding as of February 28, 2018, and (ii) 150,000 Class A Common Shares issuable upon exercise of options held by ShanghaiMed, Inc. within 60 days of the date of this Amendment No. 6. 

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Introductory Note

This Amendment No. 7 to Schedule 13D (this “Amendment No. 7”) amends and supplements the Schedule 13D filed jointly by the Reporting Persons with the Securities and Exchange Commission (the “SEC”) on September 9, 2015, as previously amended by Amendment No. 1 filed on January 5, 2016, Amendment No. 2 filed on June 7, 2016, Amendment No. 3 filed on August 25, 2017, and Amendment No. 4 filed on December 1, 2017, Amendment No. 5 filed on March 28, 2018, and Amendment No. 6 filed on March 28, 2018, respectively (the “Original Schedule 13D”). Except as amended and supplemented herein, the information set forth in the Original Schedule 13D remains unchanged. Capitalized terms used herein have meanings as assigned thereto in the Original Schedule 13D unless defined herein.

Item 6. Contracts, Arrangements, Understandings or Relationships with Respect to the Securities of the Issuer

Item 6 of the Original Schedule 13D is hereby amended and supplemented by adding the following at the end thereof:

Following the repayment by ShanghaiMed Inc. (“ShanghaiMed”) of $8,000,000 due and payable under that certain facility agreement, dated August 25, 2017, by and between ShanghaiMed and Gopher Global Credit Fund II (“Gopher”), 576,230 Class A Common Shares charged in favor of Gopher pursuant to that certain equitable share mortgage, dated August 25, 2017, by and between ShanghaiMed and Gopher (as amended by a supplemental deed dated November 29, 2017) were released on April 6, 2018 pursuant to a deed of partial release dated the same date between ShanghaiMed and Gopher, which document was provided to ShanghaiMed on April 18, 2018.

Item 7.  Material to be Filed as Exhibits.

Item 7 of the Original Schedule 13D is hereby amended and supplemented by adding the following at the end thereof:

Exhibit 7.18: Deed of Partial Release, dated April 6, 2018, by and between Gopher and ShanghaiMed

* * * * *

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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.

Date: April 24, 2018

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INDEX TO EXHIBITS

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