Who We Are


We constantly provide prompt, reliable, quality business solutions to boost our competitive edge.
We use EROWA to allow electrodes and work piece changes to ensure a high level of precision and accuracy. There is automated CNC with auto change, EDM machine with auto change copper and Wire Cut machine with wire auto threaded enables our tool room to run 24 hours.

What We Do



Optosem is vertically integrated, and we design, and fabricate our Mold Tools to support our customers.

CAD UG design with CAD/CAM

Fully integrated CAD/CAM system and hardware, coupled with our team of experienced mold designers, and process engineers ensures seamless migration of design, to tooling to production.

Precision molds from 20T to 400 tons

Multi-cavitation tool up to 160 Cavities

Contact Us


  • Address: No.5 & 5A, Jalan Tampoi 7/4, Kawasan Perusahaan Jalan Tampoi, 81200 Johor Bahru, Johor, Malaysia.
  • Phone: +607-334 1953 / +607-334 1951
  • Email: info@optosem.com

Business Hours
  • Monday - Friday - 8am to 6pm
  • Public Holiday, Saturday and Sunday - Closed

Email to us or call us for any enquiries you may have. Our dedicated customer service will assist to get your questions answered!