National oil and gas conglomerate PTT Plc plans to scale up production of special-grade face masks and it wants to commercialise implants used in the reconstruction of the human skull -- all made of polymer -- through cooperation with the state-run National Science and Technology Development Agency (NSTDA).

Under two memoranda of understanding (MoU) signed by PTT and NSTDA yesterday, NSTDA is expected to help with technological know-how while PTT provides expertise in commodity polymer production.