AGREEMENT CONCERNING JOINT FILING OF SCHEDULE 13D

EXHIBIT 10

CUSIP No. 00000X000

AGREEMENT CONCERNING JOINT FILING

OF SCHEDULE 13D

The undersigned agree as follows:

(i) each of them is individually eligible to use the Schedule 13D/A to which this Exhibit is attached, and such Schedule 13D/A is filed on behalf of each of them; and

(ii) each of them is responsible for the timely filing of such Schedule 13D/A and any amendments thereto, and for the completeness and accuracy of the information concerning such person contained therein; but none of them is responsible for the completeness or accuracy of the information concerning the other person making the filing, unless such person knows or has reason to believe that such information is inaccurate.

This Agreement may be executed in any number of counterparts, each of which shall be deemed to be an original, but all of which, taken together, shall constitute one and the same instrument.

Dated: September 2, 2020

1

	V. XXXX XXXXX
	/s/ V. Xxxx Xxxxx
	V. Xxxx Xxxxx
	THE SECOND 810 HOLDCO LTD.
	By:	/s/ V. Xxxx Xxxxx
		Name:	V. Xxxx Xxxxx
		Title:	President
	THE SECOND 1109 HOLDCO LTD.
	By:	/s/ V. Xxxx Xxxxx
		Name:	V. Xxxx Xxxxx
		Title:	President
	THE SIXTY TWO INVESTMENT COMPANY LIMITED
	By:	/s/ V. Xxxx Xxxxx
		Name:	V. Xxxx Xxxxx
		Title:	President
	FFHL GROUP LTD.
	By:	/s/ V. Xxxx Xxxxx
		Name:	V. Xxxx Xxxxx
		Title:	President
	12002574 CANADA INC.
	By:	/s/ V. Xxxx Xxxxx
		Name:	V. Xxxx Xxxxx
		Title:	President

2

	FAIRFAX FINANCIAL HOLDINGS LIMITED
	By:	/s/ Xxxxx Xxxxxx
		Name:	Xxxxx Xxxxxx
		Title:	Vice President and Chief Operating Officer
	TIG INSURANCE (BARBADOS) LIMITED
	By:	/s/ Xxxxx Xxxxxx
		Name:	Xxxxx Xxxxxx
		Title:	Attorney-in-Fact pursuant to Power of Attorney attached to this Schedule 13D
	FAIRFAX (US) INC.
	By:	/s/ Xxxxx Xxxxxx
		Name:	Xxxxx Xxxxxx
		Title:	Attorney-in-Fact pursuant to Power of Attorney attached to this Schedule 13D

3

	ODYSSEY US HOLDINGS INC.
	By:	/s/ Xxxxx Xxxxxx
		Name:	Xxxxx Xxxxxx
		Title:	Attorney-in-Fact pursuant to Power of Attorney attached to this Schedule 13D
	ODYSSEY GROUP HOLDINGS, INC.
	By:	/s/ Xxxxx Xxxxxx
		Name:	Xxxxx Xxxxxx
		Title:	Attorney-in-Fact pursuant to Power of Attorney attached to this Schedule 13D
	ODYSSEY REINSURANCE COMPANY
	By:	/s/ Xxxxx Xxxxxx
		Name:	Xxxxx Xxxxxx
		Title:	Attorney-in-Fact pursuant to Power of Attorney attached to this Schedule 13D
	XXXXXX INSURANCE COMPANY
	By:	/s/ Xxxxx Xxxxxx
		Name:	Xxxxx Xxxxxx
		Title:	Attorney-in-Fact pursuant to Power of Attorney attached to this Schedule 13D

4

	GREYSTONE INSURANCE COMPANY
	By:	/s/ Xxxxx Xxxxxx
		Name:	Xxxxx Xxxxxx
		Title:	Attorney-in-Fact pursuant to Power of Attorney attached to this Schedule 13D
	XXXX & XXXXXXX HOLDINGS CORP.
	By:	/s/ Xxxxx Xxxxxx
		Name:	Xxxxx Xxxxxx
		Title:	Attorney-in-Fact pursuant to Power of Attorney attached to this Schedule 13D
	UNITED STATES FIRE INSURANCE COMPANY
	By:	/s/ Xxxxx Xxxxxx
		Name:	Xxxxx Xxxxxx
		Title:	Attorney-in-Fact pursuant to Power of Attorney attached to this Schedule 13D
	THE NORTH RIVER INSURANCE COMPANY
	By:	/s/ Xxxxx Xxxxxx
		Name:	Xxxxx Xxxxxx
		Title:	Attorney-in-Fact pursuant to Power of Attorney attached to this Schedule 13D

5

	NORTHBRIDGE FINANCIAL CORPORATION
	By:	/s/ Xxxxx Xxxxxx
		Name:	Xxxxx Xxxxxx
		Title:	Attorney-in-Fact pursuant to Power of Attorney attached to this Schedule 13D
	FEDERATED INSURANCE COMPANY OF CANADA
	By:	/s/ Xxxxx Xxxxxx
		Name:	Xxxxx Xxxxxx
		Title:	Attorney-in-Fact pursuant to Power of Attorney attached to this Schedule 13D
	NORTHBRIDGE GENERAL INSURANCE CORPORATION
	By:	/s/ Xxxxx Xxxxxx
		Name:	Xxxxx Xxxxxx
		Title:	Attorney-in-Fact pursuant to Power of Attorney attached to this Schedule 13D
	CRC REINSURANCE LIMITED
	By:	/s/ Xxxxx Xxxxxx
		Name:	Xxxxx Xxxxxx
		Title:	Attorney-in-Fact pursuant to Power of Attorney attached to this Schedule 13D

6

	1102952 B.C. UNLIMITED LIABILITY COMPANY
	By:	/s/ Xxxxx Xxxxxx
		Name:	Xxxxx Xxxxxx
		Title:	Attorney-in-Fact pursuant to Power of Attorney attached to this Schedule 13D
	ALLIED WORLD ASSURANCE COMPANY HOLDINGS, LTD
	By:	/s/ Xxxxx Xxxxxx
		Name:	Xxxxx Xxxxxx
		Title:	Attorney-in-Fact pursuant to Power of Attorney attached to this Schedule 13D
	ALLIED WORLD ASSURANCE COMPANY HOLDINGS I, LTD
	By:	/s/ Xxxxx Xxxxxx
		Name:	Xxxxx Xxxxxx
		Title:	Attorney-in-Fact pursuant to Power of Attorney attached to this Schedule 13D
	ALLIED WORLD ASSURANCE COMPANY, LTD
	By:	/s/ Xxxxx Xxxxxx
		Name:	Xxxxx Xxxxxx
		Title:	Attorney-in-Fact pursuant to Power of Attorney attached to this Schedule 13D

7

	ALLIED WORLD ASSURANCE HOLDINGS (IRELAND) LTD
	By:	/s/ Xxxxx Xxxxxx
		Name:	Xxxxx Xxxxxx
		Title:	Attorney-in-Fact pursuant to Power of Attorney attached to this Schedule 13D
	ALLIED WORLD ASSURANCE HOLDINGS (U.S.) INC
	By:	/s/ Xxxxx Xxxxxx
		Name:	Xxxxx Xxxxxx
		Title:	Attorney-in-Fact pursuant to Power of Attorney attached to this Schedule 13D
	ALLIED WORLD INSURANCE COMPANY
	By:	/s/ Xxxxx Xxxxxx
		Name:	Xxxxx Xxxxxx
		Title:	Attorney-in-Fact pursuant to Power of Attorney attached to this Schedule 13D
	AW UNDERWRITERS INC.
	By:	/s/ Xxxxx Xxxxxx
		Name:	Xxxxx Xxxxxx
		Title:	Attorney-in-Fact pursuant to Power of Attorney attached to this Schedule 13D

8

	ALLIED WORLD SPECIALTY INSURANCE COMPANY
	By:	/s/ Xxxxx Xxxxxx
		Name:	Xxxxx Xxxxxx
		Title:	Attorney-in-Fact pursuant to Power of Attorney attached to this Schedule 13D
	NEWLINE HOLDINGS UK LIMITED
	By:	/s/ Xxxxx Xxxxxx
		Name:	Xxxxx Xxxxxx
		Title:	Attorney-in-Fact pursuant to Power of Attorney attached to this Schedule 13D
	NEWLINE CORPORATE NAME LIMITED
	By:	/s/ Xxxxx Xxxxxx
		Name:	Xxxxx Xxxxxx
		Title:	Attorney-in-Fact pursuant to Power of Attorney attached to this Schedule 13D

9

	BRIT LIMITED
	By:	/s/ Xxxx Xxxxx
		Name:	Xxxx Xxxxx
		Title:	Chief Financial Officer and Director
	BRIT INSURANCE HOLDINGS LIMITED
	By:	/s/ Xxxx Xxxxx
		Name:	Xxxx Xxxxx
		Title:	Director
	BRIT UW LIMITED
	By:	/s/ Xxxx Xxxxx
		Name:	Xxxx Xxxxx
		Title:	Director
	BRIT REINSURANCE (BERMUDA) LIMITED
	By:	/s/ Xxxx Xxxxx
		Name:	Xxxx Xxxxx
		Title:	Director

10

	RIVERSTONE HOLDINGS LIMITED
	By:	/s/ Xxxxxxxx X. Xxxxxxx
		Name:	Xxxxxxxx X. Xxxxxxx
		Title:	Chairman of the Board and Chief Executive Officer
	RIVERSTONE INSURANCE (UK) LIMITED
	By:	/s/ Xxxx X. Xxxxxx
		Name:	Xxxx X. Xxxxxx
		Title:	Managing Director

11

	CONNEMARA REINSURANCE COMPANY LTD.
	By:	/s/ Xxxx Xxxxxxxx
		Name:	Xxxx Xxxxxxxx
		Title:	Director
	RIVERSTONE (BARBADOS) LTD.
	By:	/s/ Xxxxxx Xxxxx
		Name:	Xxxxxx Xxxxx
		Title:	Vice President and General Manager
	RESOLUTION GROUP REINSURANCE (BARBADOS) LIMITED
	By:	/s/ Xxxxxx Xxxxx
		Name:	Xxxxxx Xxxxx
		Title:	Vice President and General Manager

12

	NEWLINE INSURANCE COMPANY LIMITED
	By:	/s/ Xxxxxx X. Xxxxxxx
		Name:	Xxxxxx X. Xxxxxxx
		Title:	Director

13

	VERASSURE INSURANCE COMPANY
	By:	/s/ Xxxxx Xxxxxxx
		Name:	Xxxxx Xxxxxxx
		Title:	Senior Vice President and General Counsel
	ZENITH INSURANCE COMPANY
	By:	/s/ Xxxxx Xxxxxxx
		Name:	Xxxxx Xxxxxxx
		Title:	Senior Vice President and General Counsel

14