MOSCOW (MRC) -- Yanbu National Petrochemical Co. (Yansab) reported a surge of over twofold in 2021 net profit after Zakat and tax to SAR 1.531 billion, from SAR 677.6 million a year earlier, said Argaam.The strong performance was driven by better average sales prices despite lower production and sales volume, due to the turnaround and shutdown of the company's plants as previously announ