• 1985 Estalishes Zhong Li Foundry Co., Ltd. The occupying land area about 600 level ground, the capital 15,000,000
• 1992 Yo Juh Foundry Co., Ltd. sole ownership the capital 3,000,000. The General Manager is KUO PAO LIN.
• 1995 Increases capital 5,500,000 , and certified the Y.J trademark.
• 1997 Contributes 3,500,000 constructions to add the workship.Buy the lathe drilling machine and testing equipment.
• 2002 Increases capital 10,000,000 and contributes 30,000,000 rebuild the workshop and additionally build about 220 level ground,Buys the spectrometer.
• 2005 Increases capital 28,000,000 and contributes 800,000 to buy large-scale test pressure machine 2005 On December expands the casting department workshop about 350 level ground, total level ground land area about 1,170 level ground.
• 2006 Certified by ISO9001 (Including casting & End product)
• 2008 On September contributes 40,000 dollars to import the German new desk-top spectrometer

Yo Juh Foundry Co., Ltd. is stainless casting as a predecessor, then develops various valves .From raw material to end product control the quality and the progress, and achieves the customer request by the specialty machine and the technology