Established in 2002 Shandong Tengzhou Huahai Group is a high and new technology enterprise Our group covers an area of 66, 670 square meters and has 86 graduates, postgraduates and senior professional technicians amongst 612 employees. Tengzhou City Huahai New Thermal Insulation Materials Co., Ltd. Specializes in manufacturing and exporting Phenolic Foam Air Ducts used in HVAC and Phenolic Foam Insulation Materials as well as the technology support and after-sales services. Our products have been exported to many countries and areas, such as: Iran, Korea, India Middle East and other areas.

Our products include: Phenolic foam pre-insulated air duct panels with aluminum foils (used in HVAC)Phenolic foam insulation slabs / boards with aluminum foil Phenolic foam insulation pipe sections and pipe supports, Phenolic foam insulation panels with steel sheet Phenolic foam and PU wall insulation boards. Our aluminum foil and phenolic foam composite board and our Chairman Mr. Sun zhuhai were awarded respectively as "renowned enterprise" and "renowned brand" and "renowned people" in building material industry in 2004.
 
Tengzhou City Huahai New Thermal Insulation Materials Co., Ltd. Developed aluminum foil and phenolic foam composite board continuous production process with the cooperation of some universities and institutes. The new process ranked among the first in the world and it surmount the traditional moulding production process and was the first one in China which can produce continuously. The production line was praised as "the first line in China" by "China Building Materials News" and the experts. Moreover, aluminum foils and phenolic foam composite boarsd have passed the evaluation of provincial level scientific and technological achievement test.

We have attained IS09001: 2000 Quality Management System Certification and IS014001: 2004 Environmental Management System Certification and have been elected as the standing committee member of China Thermal-Sound-Insulation Material Association. Our Chairman, Mr. Sun Zhuhai, has been elected as "Top Ten newsmakers" in thermal-sound-insulation material industry for the successful aluminum foil and phenolic foam composite board continuous production process.