Technology companies established in 1950

thumb|right|Tamron head office in Minuma-ku, Saitama|Minuma-ku, Saitama, [[Japan]] is a Japanese company manufacturing photographic lenses, optical components and commercial/industrial-use optics. Tamron Headquarters is located in Saitama City in the Saitama Prefecture of Japan.

thumb|New headquarters of Sinochem in Xiong'an, Hebei, before completion in February 2025 Sinochem Corporation () is a Chinese state-owned multinational conglomerate primarily engaged in the production and trading of chemicals and fertilizer and exploration and production of oil for civilian and military purposes. Its majority owned fertilizer subsidiary Sinofert is involved throughout the chain from production of the product and procurement on international markets to distribution and retail. It is one of the world's largest chemical and petroleum companies.

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