PureBase Corp (OTC: PUBC) is a natural minerals company that develops agricultural products and extracts mineral resources from mining properties in the United States. Revenue is generated through the sale of mineral-derived agricultural products, including fertilizers, sun protectants, soil amendments, and bio-stimulants sold under the Purebase brand family. The company relies solely on a single third-party mining services provider, USMC, a company controlled by John Bremer, a director of PureBase, for its mining operations (as disclosed in the 10-K filed 2026-03-18). PureBase has entered into agreements granting rights to purchase up to 100,000,000 tons of metakaolin supplementary cementitious materials from properties owned by US Mine LLC (Master Agreement dated June 18, 2025). The company acknowledges facing larger, better-financed competitors in agricultural minerals markets and depends on future debt or equity financings to fund working capital and development programs, as stated in the 10-K filed 2026-03-18. The fiscal year covered by the filing ended November 30, 2025.

Revenue model

Transactional sales of mineral-derived agricultural products, including fertilizers, sun protectants, soil amendments, and bio-stimulants derived from leonardite, kaolin clay, laterite, and other natural minerals. The company also holds rights to extract and sell metakaolin supplementary cementitious materials.

Products and services

Purebase Shade Advantage WP (sun protectant for crops); fertilizers, soil amendments, and bio-stimulants derived from leonardite, kaolin clay, laterite, and other natural minerals for organic and non-organic sustainable agriculture; metakaolin supplementary cementitious materials (up to 100,000,000 tons purchase rights as of June 18, 2025).

Customers and end markets

Agricultural end markets, including organic and non-organic farming operations. Products are used to protect crops, plants, and fruits from sun and winter damage, provide plant nutrients, improve dormancy, and enhance soil ecology to increase harvest yields. Specific customer names and concentrations are not disclosed in the filing excerpts.

Value-chain role

Mineral extractor and agricultural product developer. Mining services are provided exclusively by USMC, a related-party company controlled by director John Bremer. PureBase develops, brands, and sells downstream mineral-derived agricultural products under the Purebase trade name.

Geographic exposure

United States. Operations are subject to Bureau of Land Management (BLM) regulations and U.S. federal environmental laws. No specific states or regions are named in the excerpts beyond U.S. federal regulatory references.

Source: SEC 10-K, filed 2026-03-18

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