- October 10, 2021 Mah Sing Plastics Webbit Solution Commercial Share this...FacebookPinterestTwitterLinkedin - Mah Sing Plastics was incorporated in Malaysia on 15th October 1979 and is a wholly-owned subsidiary of Mah Sing Group Bhd., a company listed on the Main Board of Bursa Malaysia. 1 Welcome To MWA 2021! Close We’re sorry! MWA 2021 voting is closed. We’re currently processing the results. Thank you. Voting Ended rating 63.9 Judge