McDermott International : Amended Statement of Ownership

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 13G

Under the Securities Exchange Act of 1934

(Amendment No. 1)*

MCDERMOTT INTERNATIONAL, INC.

(Name of Issuer)

COMMON STOCK, PAR VALUE $1.00 PER SHARE

(Title of Class of Securities)

580037703

(CUSIP Number)

September 30, 2019

(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)

• 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 disclosures provided in a prior cover page.

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 ("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).

CUSIP No. 580037703			SCHEDULE 13G	Page 2 of 11
1		NAME OF REPORTING PERSON OR
		I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
		Chatterjee Charitable Foundation
2		CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP	(a) o
						(b) o
3		SEC USE ONLY
4		CITIZENSHIP OR PLACE OF ORGANIZATION
		New York
			5		SOLE VOTING POWER
					0
	NUMBER OF	6		SHARED VOTING POWER
	SHARES			600,000*
BENEFICIALLY OWNED
BY EACH REPORTING	7		SOLE DISPOSITIVE POWER
	PERSON
	WITH			0
			8		SHARED DISPOSITIVE POWER
					600,000*
9		AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
		600,000*
10		CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES	o
11		PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
		0.3%*
12		TYPE OF REPORTING PERSON
		OO

• See Item 4 for additional information.

CUSIP No. 580037703			SCHEDULE 13G	Page 3 of 11
1		NAME OF REPORTING PERSON OR
		I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
		MCPI Holdings Limited
2		CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP	(a) o
						(b) o
3		SEC USE ONLY
4		CITIZENSHIP OR PLACE OF ORGANIZATION
		Mauritius
			5		SOLE VOTING POWER
					0
	NUMBER OF	6		SHARED VOTING POWER
	SHARES			3,573,300*
BENEFICIALLY OWNED
BY EACH REPORTING	7		SOLE DISPOSITIVE POWER
	PERSON
	WITH			0
			8		SHARED DISPOSITIVE POWER
					3,573,300*
9		AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
		3,573,300*
10		CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES	o
11		PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
		2.0%*
12		TYPE OF REPORTING PERSON
		FI

• See Item 4 for additional information.

CUSIP No. 580037703			SCHEDULE 13G	Page 4 of 11
1		NAME OF REPORTING PERSON OR
		I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
		Labvantage Solutions Technologies Limited
2		CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP	(a) o
						(b) o
3		SEC USE ONLY
4		CITIZENSHIP OR PLACE OF ORGANIZATION
		Mauritius
			5		SOLE VOTING POWER
					0
	NUMBER OF	6		SHARED VOTING POWER
	SHARES			6,876,900*
BENEFICIALLY OWNED
BY EACH REPORTING	7		SOLE DISPOSITIVE POWER
	PERSON
	WITH			0
			8		SHARED DISPOSITIVE POWER
					6,876,900*
9		AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
		6,876,900*
10		CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES	o
11		PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
		3.8%*
12		TYPE OF REPORTING PERSON
		FI

• See Item 4 for additional information.

CUSIP No. 580037703			SCHEDULE 13G	Page 5 of 11
1		NAME OF REPORTING PERSON OR
		I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
		TCG Lifesciences Limited
2		CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP	(a) o
						(b) o
3		SEC USE ONLY
4		CITIZENSHIP OR PLACE OF ORGANIZATION
		Mauritius
			5		SOLE VOTING POWER
					0
	NUMBER OF	6		SHARED VOTING POWER
	SHARES			6,876,900*
BENEFICIALLY OWNED
BY EACH REPORTING	7		SOLE DISPOSITIVE POWER
	PERSON
	WITH			0
			8		SHARED DISPOSITIVE POWER
					6,876,900*
9		AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
		6,876,900*
10		CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES	o
11		PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
		3.8%*
12		TYPE OF REPORTING PERSON
		FI

• See Item 4 for additional information.