Office address

Company: Jilin Chinese Academy of Sciences - Yanshen Technology Co., Ltd.

Address: Building H13, Changchun North Lake Science and Technology Park, 

No. 3333, Sheng Bei Street, North Lake Science and Technology Development 

Zone, Changchun City

Working hours

Manual customer service time: Monday to Friday 9:00-17:00

Telephone: 0431-80514535

During non-manual customer service hours, you can place your order by 

yourself, and we will process your order and ship it on the nearest working 

day

Order inquiry

    Tel：0431-80514535

    Emial：et@chemextension.com