EXHIBIT 99.23
CUSIP No. 09228F103
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 30, 2025
| V. PREM WATSA | |||
| /s/ V. Prem Watsa | |||
| THE SECOND 810 HOLDCO LTD. | |||
| By: | /s/ V. Prem Watsa | ||
| Name: | V. Prem Watsa | ||
| Title: | Director | ||
| THE SECOND 1109 HOLDCO LTD. | |||
| By: | /s/ V. Prem Watsa | ||
| Name: | V. Prem Watsa | ||
| Title: | President | ||
| THE SIXTY TWO INVESTMENT COMPANY LIMITED | |||
| By: | /s/ V. Prem Watsa | ||
| Name: | V. Prem Watsa | ||
| Title: | President | ||
| 12002574 CANADA INC. | |||
| By: | /s/ V. Prem Watsa | ||
| Name: | V. Prem Watsa | ||
| Title: |
President
| ||
| FFHL GROUP LTD. | |||
| By: | /s/ V. Prem Watsa | ||
| Name: | V. Prem Watsa | ||
| Title: | President | ||
| FAIRFAX FINANCIAL HOLDINGS LIMITED | |||
| By: | /s/ Peter Clarke | ||
| Name: | Peter Clarke | ||
| Title: | President and Chief Operating Officer | ||
| FAIRFAX (US) INC. | |||
| By: | /s/ Peter Clarke | ||
| Name: | Peter Clarke | ||
| Title: | Attorney-in-Fact | ||
| ODYSSEY GROUP HOLDINGS, INC. | |||
| By: | /s/ Peter Clarke | ||
| Name: | Peter Clarke | ||
| Title: | Attorney-in-Fact | ||
| ODYSSEY REINSURANCE COMPANY | |||
| By: | /s/ Peter Clarke | ||
| Name: | Peter Clarke | ||
| Title: | Attorney-in-Fact | ||
| CRUM & FORSTER HOLDINGS CORP. | |||
| By: | /s/ Peter Clarke | ||
| Name: | Peter Clarke | ||
| Title: | Attorney-in-Fact | ||
| UNITED STATES FIRE INSURANCE COMPANY | |||
| By: | /s/ Peter Clarke | ||
| Name: | Peter Clarke | ||
| Title: | Attorney-in-Fact | ||
| TIG INSURANCE COMPANY | |||
| By: | /s/ Peter Clarke | ||
| Name: | Peter Clarke | ||
| Title: | Attorney-in-Fact | ||
| NORTHBRIDGE FINANCIAL CORPORATION | |||
| By: | /s/ Peter Clarke | ||
| Name: | Peter Clarke | ||
| Title: | Attorney-in-Fact | ||
| FEDERATED INSURANCE COMPANY OF CANADA | |||
| By: | /s/ Peter Clarke | ||
| Name: | Peter Clarke | ||
| Title: | Attorney-in-Fact | ||
| NORTHBRIDGE GENERAL INSURANCE CORPORATION | |||
| By: | /s/ Peter Clarke | ||
| Name: | Peter Clarke | ||
| Title: | Attorney-in-Fact | ||
| VERASSURE INSURANCE COMPANY | |||
| By: | /s/ Peter Clarke | ||
| Name: | Peter Clarke | ||
| Title: | Attorney-in-Fact | ||
|
ZENITH INSURANCE COMPANY | |||
| By: | /s/ Peter Clarke | ||
| Name: | Peter Clarke | ||
| Title: | Attorney-in-Fact | ||
| 1102952 B.C. UNLIMITED LIABILITY COMPANY | |||
| By: | /s/ Peter Clarke | ||
| Name: | Peter Clarke | ||
| Title: | Attorney-in-Fact | ||
| ALLIED WORLD ASSURANCE COMPANY HOLDINGS, LTD | |||
| By: | /s/ Peter Clarke | ||
| Name: | Peter Clarke | ||
| Title: | Attorney-in-Fact | ||
| ALLIED WORLD ASSURANCE COMPANY HOLDINGS I, LTD | |||
| By: | /s/ Peter Clarke | ||
| Name: | Peter Clarke | ||
| Title: | Attorney-in-Fact | ||
| ALLIED WORLD ASSURANCE COMPANY, LTD | |||
| By: | /s/ Peter Clarke | ||
| Name: | Peter Clarke | ||
| Title: | Attorney-in-Fact | ||
| ALLIED WORLD ASSURANCE HOLDINGS (IRELAND) LTD | |||
| By: | /s/ Peter Clarke | ||
| Name: | Peter Clarke | ||
| Title: | Attorney-in-Fact | ||
| ALLIED WORLD ASSURANCE HOLDINGS (U.S.) INC | |||
| By: | /s/ Peter Clarke | ||
| Name: | Peter Clarke | ||
| Title: | Attorney-in-Fact | ||
|
ALLIED WORLD INSURANCE COMPANY | |||
| By: | /s/ Peter Clarke | ||
| Name: | Peter Clarke | ||
| Title: | Attorney-in-Fact | ||
| AW UNDERWRITERS INC. | |||
| By: | /s/ Peter Clarke | ||
| Name: | Peter Clarke | ||
| Title: |
Attorney-in-Fact
| ||
| ALLIED WORLD SPECIALTY INSURANCE COMPANY | |||
| By: | /s/ Peter Clarke | ||
| Name: | Peter Clarke | ||
| Title: | Attorney-in-Fact | ||
|
NEWLINE HOLDINGS UK LIMITED | |||
| By: | /s/ Peter Clarke | ||
| Name: | Peter Clarke | ||
| Title: | Attorney-in-Fact | ||
| NEWLINE CORPORATE NAME LIMITED | |||
| By: | /s/ Peter Clarke | ||
| Name: | Peter Clarke | ||
| Title: | Attorney-in-Fact | ||
| NEWLINE INSURANCE COMPANY LIMITED | |||
| By: | /s/ Peter Clarke | ||
| Name: | Peter Clarke | ||
| Title: | Attorney-in-Fact | ||
| FAIRFAX UK HOLDINGS LIMITED | |||
| By: | /s/ Michael Wallace | ||
| Name: | Michael Wallace | ||
| Title: | Director | ||
| BRIT GROUP HOLDINGS LIMITED | |||
| By: | /s/ Gavin Wilkinson | ||
| Name: | Gavin Wilkinson | ||
| Title: | Group Chief Financial Officer | ||
| BRIT INSURANCE HOLDINGS LIMITED | |||
| By: | /s/ Gavin Wilkinson | ||
| Name: | Gavin Wilkinson | ||
| Title: | Group Chief Financial Officer | ||
| BRIT UW LIMITED | |||
| By: | /s/ Gavin Wilkinson | ||
| Name: | Gavin Wilkinson | ||
| Title: | Group Chief Financial Officer | ||
| BRIT REINSURANCE (BERMUDA) LIMITED | |||
| By: | /s/ Gavin Wilkinson | ||
| Name: | Gavin Wilkinson | ||
| Title: | Group Chief Financial Officer | ||