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- Main Pillar established in Taichung, manufacturing hand-made tool and founded YF brand.
- Purchase CNC lathes and machining center, transforming to manufacture stainless steel flange.
- Construction of the plant in Taichung Industrial Park, transforming to produce stainless steel ball valve.
- Construction of class 1,000 and 10,000 clean room, manufacture super purity ball valve, used in optoelectronics、 semi-conductor、biotechnology、aerospace etc.
- Focus on ECB (Electro Chemical Buffing), rough surface (smooth degree) reach 0.1 ~0.01µm, meet SEMI standard, high quality mirror surface technology, stable quality and high efficiency.