Oakland, Calif. – September 17, 2026 -- Vietnam Waste Solutions (VWS), the Vietnamese subsidiary of Oakland-based California Waste Solutions (CWS), has proposed a 50- to 60-megawatt waste-to-energy plant at its Da Phuoc Integrated Solid Waste Facility (DPI) outside Ho Chi Minh City, adding to roughly $200 million already invested in the site.