Diamond Petrochemicals


Who We Are

Diamond Petrochemicals Canada Corporation (“DPCC”) is a Canadian company with manufacturing facility located in Sarnia, Ontario. DPCC was established in 2020 to own and operate Canada’s sole 1,3-Butadiene extraction unit. 1,3-Butadiene is a raw material for synthetic rubber, and it is found in production of tires as well as in many essential industrial and consumer goods.

DPCC is a wholly owned subsidiary of Mitsubishi Corporation, one of the largest Japanese trading house. Our Philosophy and Principles are guided by our parent company and forms the foundation of our commitment to the stakeholders.

Mitsubishi Corporation is a global integrated business enterprise that develops and operates businesses together with its offices and subsidiaries in approximately 90 countries and regions worldwide, as well as its global network of around 1,800 group companies.
Mitsubishi Corporation has 8 Business Groups that operate across virtually every industry: Environmental Energy, Materials Solution, Mineral Resources, Urban Development & Infrastructure, Mobility, Food Industry, Smart-Life Creation and Power Solution. Through these 8 Business Groups, Mitsubishi Corporation’s current activities have expanded far beyond its traditional trading operations to include project development, production and manufacturing operations, working in collaboration with our trusted partners around the globe.

CEO Message

“Corporate social responsibility” has become an important factor in corporate evaluation, and we will actively respond to social demands in a wide range of fields such as social contribution, environmental conservation, and legal compliance. Through these activities, together with our stakeholders, we will contribute to the further development of DPCC’s business and the creation of social value.