Explanatory Note
This Form SD of Owens Corning (the Company, our or we) has been prepared pursuant to Rule 13p-1 promulgated under the
Securities Exchange Act of 1934, as amended, for the period January 1, 2023 to December 31, 2023 (the Reporting Period).
As
previously reported, on May 15, 2024, the Company consummated the previously announced transaction with Masonite International Corporation, a British Columbia corporation (Masonite), pursuant to the Arrangement Agreement (the
Agreement), dated February 8, 2024, among Owens Corning, MT Acquisition Co ULC, a British Columbia unlimited liability company and a wholly owned subsidiary of Owens Corning (Purchaser) and Masonite. Pursuant to the
Agreement, at the effective time of the Arrangement, Purchaser acquired all of the issued and outstanding common shares of Masonite at a purchase price of $133.00 per share (the Arrangement). The Arrangement was implemented by way of a
plan of arrangement pursuant to the Business Corporations Act (British Columbia). Upon completion of the Arrangement, Masonite became an indirect wholly owned subsidiary of Owens Corning.
The disclosures in this Form SD, including any descriptions of the Company or the Companys products, cover only the Reporting Period, and do not include
any changes to the Company or the Companys disclosures that may have occurred due to the completion of the Arrangement.
Section 1 -
Conflict Minerals Disclosure
Item 1.01 Conflict Minerals Disclosure and Report
Overview of Owens Corning Products
Owens Corning
is a global building and construction materials leader committed to building a sustainable future through material innovation. Our three integrated businesses Roofing, Insulation, and Composites provide durable, sustainable,
energy-efficient solutions that leverage our unique material science, manufacturing, and market knowledge to help our customers win and grow.
The
Companys three reportable segments are defined as follows:
Roofing Within the Roofing segment, the Company manufactures and
sells residential roofing shingles, oxidized asphalt materials, roofing components used in residential and commercial construction and specialty applications, and synthetic packaging materials.
Insulation Within the Insulation segment, the Company manufactures and sells thermal and acoustical batts, loosefill insulation, spray foam
insulation, foam sheathing and accessories. It also manufactures and sells glass fiber pipe insulation, energy efficient flexible duct media, bonded and granulated mineral wool insulation, cellular glass insulation, and foam insulation used in
above- and below-grade construction applications.
Composites The Company manufactures, fabricates and sells glass reinforcements in the
form of fiber. Glass reinforcement materials are also used downstream by the Composites segment to manufacture and sell glass fiber products in the form of fabrics, non-wovens and other specialized products.
Conflict Minerals Disclosure
Section 1502 of
the Dodd-Frank Wall Street Reform and Consumer Protection Act defines conflict minerals as columbite-tantalite (coltan), cassiterite, gold, wolframite, or their derivatives, which are currently limited to tantalum, tin and tungsten (collectively,
Conflict Minerals). The Company has conducted an internal review of its products and manufacturing processes and determined that Conflict Minerals are necessary to the functionality or production of the spinners that are part of the
machinery used to make some of the Companys insulation products.
In 2023, the Company contracted to manufacture spinners. Most of the spinners were
used at the Companys facilities in the production of its insulation products and some of the spinners were sold to third parties. The Company conducted in good faith a reasonable country of origin inquiry (RCOI) regarding the
origin of the Conflict Minerals in the spinners sold to third parties. In conducting the RCOI, the Company contacted the single contract manufacturer of spinners containing Conflict Minerals (the Supplier) and discussed its policies and
practices regarding the sourcing of Conflict Minerals. The Supplier indicated that it has received written declarations from its sub-suppliers that the Conflict Minerals they provide to the Supplier are purchased via scrap purchases on the secondary
market in accordance with an established conflict-free policy, but the Supplier does not have third-party validation from a particular organization, program, or protocol regarding each of the smelters used by its sub-suppliers. The Company has
obtained a completed Conflict Minerals Reporting Template from the Supplier that provided no indication or reason to believe that Conflict Minerals in the spinner parts it supplied had originated from the Democratic Republic of the Congo or an
adjoining country.