October, 1935 Seiichi Yokoi, the founder, established Tenma Factice Factory in Osaka, and started manufacturing of brown factices, white factices, and amber factices.
August, 1943 TENMA FACTICE MFG, CO., LTD. was established with the capital of 360,000 yen.
1972 Sulfur-free factice "U-8" and "U-10" were developed.
1982 The capital was increased to 50 million yen.
1987 Sulfur-free factice "Liquid F-3" was developed.
September, 1991 Hyogo plant was completed at Ono-city, Hyogo.
May, 1995 Hajime Yokoi, the second president, received an award for the contribution for many years from "The Society of Rubber Science and Technology, Japan".
December, 1997 The second term construction of the Hyogo plant was completed.
June, 2006 ISO 9001 was attested.
December, 2006 KEMS, Kobe Environmental Management System, was attested.
May, 2008 The company received a letter of appreciation from "The Kansai Branch of The Society of Rubber Science and Technology, Japan".