|1909||Founded by Tomekichi Maruyama.
Started production of various metals and snaps.
|1914||Moved to Honjo-ku Irie-cho, Tokyo City.|
|1923||Burned down due to the Great Kanto Earthquake.|
|1924||Moved to 5-1517, Honcho, Funabashi-shi, Chiba prefecture to resume operation.|
|1933||High-speed auto pressing machines were introduced from Germany to increase the volume of production and quality.
Organized a general partnership company Maruyama Kinzoku Seisakusho.
Capital: 50,000 yen
Representative partner: Tomekichi Maruyama
|1944||Changed name to Maruyama Kinzoku (Maruyama Metal MFG.) and reorganized into a stock company.
Capital: 130,000 yen
|1948||Increased capital to 1,000,000 yen.|
|1950||His Imperial Highness Takamatsu visited the factory on October 11th.|
|1953||Toki Maruyama became the company president.|
|1965||Increased capital to 4,000,000 yen.
Built and moved to a new main factory at the present location.
|1970||Increased capital to 10,000,000 yen.|
|1973||Tomimasa Maruyama became the CEO.|
|1978||Increased capital to 30,000,000 yen.|
|1979||Celebrated the company's 70th anniversary.|
|1982||Awarded from Chiba prefectural government for efforts promoting trade.|
|1987||Recognized for “excellent incorporation.”|
|1990||Celebrated the company's 80th anniversary.|
|1993||Tomimasa Maruyama became Chairman of the Board.
Tatsuo Kawakami became CEO.
|1995||Introduced a state-of-the-art production machine from Germany.|
|2000||Celebrated the company's 80th anniversary. Conducted recreation trip to Beijing.|
|2002||Established a joint corporation (環豊金属有限公司) in China on November 15th.|
|2004|| Company trip to Shanghai, visited China factory.
Mayor of Funabashi City visited our factory on November 24th.
環豊金属 Increased capital from 41,000,000 yen to 65,000,000 yen.
|2007||Started Maruyama Metal's employee ownership program.|
|2010||Company trip to Thailand.
Celebrated the company's 101st anniversary.