Exporters continue to monitor global trends with a close eye on May pricing announcements out of Asia this week. Traders continued pushing for lower prices amid weak global demand with pricing indications talked as low as $830/mt FAS Houston. Some market sources said they thought prices would stabilize in May after falling $50/mt, or 5.6%, since February 28, while others said they expected further declines. Market sources said supply was robust, particularly as Shintech ramps back up after having finished a turnaround in March at its 1.4 million mt/year PVC plant in Freeport, Texas. But anemic global demand and low ethylene prices were adding pressure, market sources said.