1960	YE I founded with the paid-in captial of NT$200,000.
1973	Renamed YE I Machinery Factory Ltd. and covered plant area expanded to 1,000M2.
1976	Capital increased to NT$5 million and plant area to 2,500M2.
1980	Officially renamed YE I Machinery Factory Co., Ltd. Capital increased to NT$12 million, lmported 3 meter long deep boring driller from Switzerland to start the favrication of cylinder pipes for plastic machines and became a major supplier in the field.
1984	Capital increased to NT$25 million. Additional production facilities were procured.
1985	Capital increased to NT$35 million and plant area to 5,500M2.
1987	Organized the R & D department to innovate design and improve product quality.
1988	Capital increased to NT$40.3 million.
1989	Planned to set up Niao Soong Plant.
1990	Capital increased to NT$55 million. Naio Soong Plant completed with an area of 15500M2. and commenced production on Mar. 25. Total employce reached 120.
1998	ISO 9001 (1994 edition)certified
2000	CE certified
2002	ISO 9001:2000 certified
2004	Capital increased to NT$60 million.