Chain of Custody Certificate

PEFC/01-4-07 ISO/IEC 17065

Product Certification Body #0746

This is to confirm that KPMG Performance Registrar Inc. has examined the procedures of

Interfor Corporation PO Box 49114, Four Bentall Centre, 3500-1055 Dunsmuir Street, Vancouver, BC V7X 1H7

and determined that the Company maintains chain of custody and sales tracking systems which form a reasonable basis for: (1) tracking the source of wood fibre processed by these facilities, and

(2) ensuring that the output from these facilities, which is claimed to be “PEFC-certified”, will not exceed the amount of wood fibre coming into these facilities from PEFC certified woodlands operations 1.

The Company’s Chain of Custody system conforms in all material respects to the requirements of PEFC ST 2002:2013.

This Chain of Custody System certification² applies to the following:

The manufacture and sale by Interfor Corporation and its wholly owned subsidiary Interfor Sales and Marketing Ltd. (collectively ‘Interfor’) of softwood lumber, exterior

wood products (decking and siding) and wood chips/sawdust produced at the following Interfor sawmills and related custom cut operations: Acorn Sawmill, Hammond

Sawmill including CedarPrime, Adams Lake Sawmill, Castlegar Sawmill, Grand Forks Sawmill;

The acquisition, handling and sale of lumber purchased by Interfor from Columbia Vista Corporation; and;

The acquisition, handling and sale of lumber purchased by Interfor from Manke Lumber Company Inc.

This chain of custody certification is given subject to the terms and conditions governing the use of this certificate as described in the agreemen t between KPMG Performance Registrar Inc. and the

holder thereof. Chain of custody certification does not assure the regulatory compliance or continued conformance with the applicable standards by the certified woodlands operations from which

wood fibre is obtained. 1PEFC certified woodlands operations are those which are certified under forest certification standards endorsed by PEFC, including the following standards:

the CSA Z809 Sustainable Forest Management standard and the Sustainable Forestry Initiative (SFI®) standard.

²The client information form (CIF) provides additional information on the Company’s scope of activities, applied chain of custody method and applied definition of raw material origin. The latest version of the CIF, which forms an integral part of this certificate, is controlled and retained by KPMG PRI.

Certificate No. 1832.08 Chris Ridley-Thomas Issue Date: April 10, 2007 President Renewal Date: May 17, 2017 KPMG Performance Registrar Inc. Expiry Date: May 31, 2022 Vancouver, B.C., Canada V7Y 1K3

Certificate of RegistrationThis certifies that the wood fiber sourcing practices of

Interfor US, Inc.903 Jernigan Street

Perry, Georgia, 31069, United States

have been assessed by NSF-ISR and found to be in conformance with

SFI 2015-2019 Fiber Sourcing StandardSFI 2015-2019 Standards and Rules, Section 3

Scope of Registration:The procurement of wood fiber for its sawmills located in Perry, Preston, Meldrim,

Baxley, Eatonton, Swainsboro and Thomaston, GA, Georgetown, SC and Monticello, AR.The SFI Fiber Sourcing number is NSF-SFI-FS-C0088953.

Certificate Number: C0088953-FS2

Carl Blazik,Director, Technical Operations & Business Units, NSF-ISR, Ltd.

Certificate Issue Date: 27-JUN-2018Registration Date: 22-DEC-2015Expiration Date *: 21-DEC-2020

This Annex is only Valid in connection with the above-mentioned certificate issued by NSF-ISR

Page 2 of 3

ANNEX PAGE FOR CERTIFICATE REGISTRATION NUMBERC0088953-FS2

CERTIFICATE ISSUE DATE: 27-JUN-2018CERTIFICATE EXPIRATION DATE: 21-DEC-2020

Interfor US, Inc.903 Jernigan Street

Perry, Georgia, 31069, United StatesRemote Location:

Interfor Preston Division Sawmill- C0254663378 Tolleson Road

Preston, Georgia, 31824, United States

Scope:The procurement of wood fiber.The SFI Fiber Sourcing number is NSF-SFI-FS-C0088953.

Remote Location: Interfor Baxley Division Sawmill- C0254664

1830 Golden Isles EastBaxley, Georgia, 31513, United States

Scope:The procurement of wood fiber.The SFI Fiber Sourcing number is NSF-SFI-FS-C0088953.

Remote Location: Interfor Eatonton Division Sawmill- C0254665

370 Dennis Station Road SWEatonton, Georgia, 31024, United States

Scope:The procurement of wood fiber.The SFI Fiber Sourcing number is NSF-SFI-FS-C0088953.

Remote Location: Interfor Meldrim Division Sawmill- C0254666

911 Old River RoadBloomingdale, Georgia, 31302, United States

Scope:The procurement of wood fiber.The SFI Fiber Sourcing number is NSF-SFI-FS-C0088953.

Remote Location: Interfor Swainsboro Division Sawmill- C0254667

8796 Highway 297Swainsboro, Georgia, 30401, United States

Scope:The procurement of wood fiber.The SFI Fiber Sourcing number is NSF-SFI-FS-C0088953.

Remote Location: Interfor Thomaston Division Sawmill- C0254670

75 Ben Hill RoadThomaston, Georgia, 30286, United States

Scope:The procurement of wood fiber.The SFI Fiber Sourcing number is NSF-SFI-FS-C0088953.

This Annex is only Valid in connection with the above-mentioned certificate issued by NSF-ISR

Page 3 of 3

ANNEX PAGE FOR CERTIFICATE REGISTRATION NUMBERC0088953-FS2

CERTIFICATE ISSUE DATE: 27-JUN-2018CERTIFICATE EXPIRATION DATE: 21-DEC-2020

Interfor US, Inc.903 Jernigan Street

Perry, Georgia, 31069, United StatesRemote Location:

Interfor Georgetown Division Sawmill- C02546712701 Indian Hut Road

Georgetown, South Carolina, 29440-9146, United States

Scope:The procurement of wood fiber.The SFI Fiber Sourcing number is NSF-SFI-FS-C0088953.

Remote Location: Interfor Monticello Division Sawmill- C0254672

2018 Midway RouteMonticello, Arkansas, 71655-8606, United States

Scope:The procurement of wood fiber.The SFI Fiber Sourcing number is NSF-SFI-FS-C0088953.