Pairojsompng group was established by Mr. Pairoj Jaroenpoj in 1981 with Pairojsompongpanitch Limited Partnership. The scope of work began with civil engineering projects such as landscaping of garden and continued to environmental project with several technology such as sanitary landfill and anaerobic digestion.
Later, there was the implementation of renewable energy project such as landfill gas to electricity. Pairojsompong plans to expand the scope of work in environment sector in the future based on research and development.
Pairojsompong group are divided into 3 companies that are :
1. Pairojsompongpanich Co.,Ltd.
2. Pairojsompng Co.,Ltd.
3. Jareonsompong Co.,Ltd.
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PSP was found by Mr. Pairoj Jaroenpoj in 1979. His experiences are related to real estate, landscaping and transporting work. When the real estate sectors in Thailand became blooming, Mr. Pairoj took the opportunity to expand his personal business into company form. Mostly PSP projects were based on biddings from government sectors such as Bangkok Metropolitan Administration (BMA) and Department of Vocational Education. In early 1990, PSP continued to expand business in environmental project as the growth of real estate sector significantly decreased. In 1993 PSP won the bid on sanitary municipal solid waste landfilling project with 1,500 tonnes per day. At present, PSP continues to operate the sanitary landfill site with waste baling and wrapping technology. PSP has been operating environmental management project and is one of the experts in municipal solid waste management.
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Pairojsompong Co.,Ltd was establish in 2004 in order to operate construction, real estate and future related developing project.
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Jaroensompong Company Limited (JS) was established due to the outcomes of research and development projects (R&D) of PSP. These included landfill gas to energy project, compressed natural gas from biogas, wood vinegar from biomass, anaerobic digestion of leachate and organic waste. According R&D, the most sustainable project can be developed as a full scale plant was landfill gas to energy. As a result, JS was found in order to operate the landfill gas to electricity power plant and related sustainable renewable energy project.
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