1961 TOYO was established.
Capital: 300 million yen
1962 An agreement for engineering service and technical assistance was concluded with the Lummus Co.(U.S.A.)
1963 The first overseas contract for a fertilizer plant with the Fertilizer Corp. of India was awarded.
1964 The first urea plant contract in the former Soviet Union was awarded.
1965 TOYO was awarded its first ethylene plant contract.(Osaka Japan)
1969 TOYO was awarded the contract for a first ammonia plant in the former Soviet Union
1970 TOYO was awarded the contract for two ammonia plants in the former East Germany.
1972 International Procurement & Service Corporation (Currently Toyo Engineering Europe, S.r.l) established.
1973 A contract for a urea plant for China was awarded.
1975 Capital: 1,890 million yen
1976 Toyo Engineering India Limited established
1978 Capital: 2,970 million yen
1980 Capital :3,300 million yen
TOYO was listed on the second section of the Tokyo Stock Exchange.
1982 Capital: 5,040 million yen
TOYO was listed on the first section of the Tokyo Stock Exchange.
1986 Toyo U.S.A., Inc. established.
Toyo Engineering & Construction Sdn. Bhd. established in Malaysia
1987 Toyo Engineering Korea Limited established
1989 Capital: 12,219 million yen
1990 Head Office/Engineering Center (Baytec Building) started operation in Narashino, Chiba.
1993 Capital :13,017 million yen
1994 TOYO received the ISO 9001 registration
2004 TOYO received the ISO 14001 registration.
Toyo Engineering Corporation, China established.
2006 Capital: 18,199 million yen
2007 Relocation of Tokyo head office.
2009 TOYO formulated the Group MVV (Mission, Vision, Values).
2010 TOYO acquired Tri Ocean Engineering Limited in Calgary Alberta, Canada.
2011 The 50th anniversary
TOYO invested in PT. Inti Karya Persada Tehnik (IKPT) in Indonesia.
2012 TS Participações e Investimentos S.A. established.
Consolidated Group logo developed.
2018 Haruo Nagamatsu was elected as President and CEO.