MKS Crop.

 MKS was established in 1982 and now has over 1000 customers from all over the world for our membrane switches, flexible PCBs and touch panels and silicone rubber keypad. We employ more than 2000 workers in our seven factories, which are located in Taipei, Tu Chen (Taiwan) and Mainland China.
We have diligent engineering teams who will use the latest R&D equipment to provide you with samples within one to two weeks, at very reasonable costs. All our factories maintain very flexible production lines, so however large or small your order, we can fulfil it, and you can rest assured that each of our factories are ISO 9001-2000 certified. In addition to this, some of our factories also have QS9000 and UL approved, we have powerful QC systems and accurate testing equipment for all our products.
 

http://www.mks.com.tw/index.html