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About Us
Started to provide environmental friendly coating materials for Whirlpool.

2016

Started to provide environmental friendly coating materials for Whirlpool.
Started to provide medical PSA series products for pharmaceutical companies.

2014

Started to provide medical PSA series products for pharmaceutical companies.
Provided organic silicon products for Hangzhou Panasonic and Zhejiang HIK.

2013

Provided organic silicon products for Hangzhou Panasonic and Zhejiang HIK.
Started to export to Malaysia and Taiwan; organic silicon products entered oversea markets.

2012

Started to export to Malaysia and Taiwan; organic silicon products entered oversea markets.
Provided organic silicon sealant for Toyota, Volkswagen and Korea Samsung.

2007

Provided organic silicon sealant for Toyota, Volkswagen and Korea Samsung.
Started to provide various organic silicon sealants for Panasonic Appliances Air-conditioning Co., Ltd.

2004

Started to provide various organic silicon sealants for Panasonic Appliances Air-conditioning Co., Ltd.
Established Wuxi Yada Technology Co., Ltd. (15000 m2 floor area and 4000 m2 building area) to specialize in research and manufacturing of organic silicon.

2003

Established Wuxi Yada Technology Co., Ltd. (15000 m2 floor area and 4000 m2 building area) to specialize in research and manufacturing of organic silicon.
Established Shanghai Youlong Industry Development Co., Ltd. as an external window of the company; started promotion, application and external trade business of organic silicon series products.

2002

Established Shanghai Youlong Industry Development Co., Ltd. as an external window of the company; started promotion, application and external trade business of organic silicon series products.
Started to provide PU sealant resin for PCB boards for U.S. MERSON, Ariston and Shanghai Sharp.

1998

Started to provide PU sealant resin for PCB boards for U.S. MERSON, Ariston and Shanghai Sharp.
Renamed as Yantai Longda Resin Co., Ltd. and engaged in research of silicone.

1997

Renamed as Yantai Longda Resin Co., Ltd. and engaged in research of silicone.
Started to provide PU sealant resin for PCB boards for Qingdao Haier.

1996

Started to provide PU sealant resin for PCB boards for Qingdao Haier.
Started to provide PU sealant resin for PCB boards for Hangzhou Panasonic Appliances Co., Ltd. and LittleSwan washers.

1994

Started to provide PU sealant resin for PCB boards for Hangzhou Panasonic Appliances Co., Ltd. and LittleSwan washers.
Established Yantai Longda Resin Co., Ltd. (6000 m2 floor area and 1800 m2 building area) and started research and manufacturing of PU sealant resin and epoxy adhesive.

1993

Established Yantai Longda Resin Co., Ltd. (6000 m2 floor area and 1800 m2 building area) and started research and manufacturing of PU sealant resin and epoxy adhesive.
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