I believe these companies also do rotomolding. Check mo na lang;
Outback Five Star Clark Philippines IncInternationally managed Philippine manufacturing company specializing in Fibreglass Ice Boxes / Coolers, Plastic Rotomolded Coolers and other similar products.
Address: N 7120 & 7121 Blue Diamond Street
City: Clark Freeport Zone 2009
Province: Pampanga
Country: Philippines
Ms.Gloria Brown-Vice President
Phone 1: (045)599-5178
Phone 2:(045)599-6874
Fax: (045)599-5180
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INCA PLASTICS PHILIPPINES, INC.
Bldg. 4 Philcrest Compound, Km. 23 West Service Road, Cupang, Muntinlupa City, Metro Manila; Tels.: +63 2 850 0482; 850 0372; 809 2776; 809 2730; Fax +63 2 809 1108; Fax +63 2 410 0187; email:mailto:ralphc@inca.com.ph
INCA PLASTICS PHILIPPINES, INC. designs, manufactures and markets plastic products using the process of rotational molding. INCA only uses virgin Polyethylene resins that are US FDA approved, food grade, and compounded with UV stabilizers for maximum protection for outdoor use.
Organized in 1989 in the Philippines, INCA also established manufacturing facilities in Malaysia and Thailand to cover and serve the ASEAN region. INCA has an engineering design team and operates a mold shop in the Philippines, fabricating molds and proprietary tools. This enables INCA to rapidly prototype custom designs and produce plastic products in just a few weeks setting it apart from other plastic processors.
Here's their website;
http://www.inca.com.ph/