GLCLOCAL Central Spectrum inks deal with Oleon Port Klang for oleochemical plant expansionEditor Selangor JournalJuly 5, 2022July 5, 2022 by Editor Selangor JournalJuly 5, 2022July 5, 2022 By Nasuha Badrul Huzaini SHAH ALAM, July 5 — The master developer of Selangor Halal Hub, Central Spectrum (M) Sdn Bhd (CSSB), and Oleon Port...