The rapid economic development has been accompanied by an increasing amount of urban waste at MBPJ, with piles of waste becoming a nuisance. Some conventional waste, such as cardboard boxes and plastic film, have been dealt with efficiently and scientifically, but the disposal of polystyrene has become a major remaining problem.

In MBPJ, residential areas and commercial centers generate large amounts of waste polystyrene on a daily basis. Over the years, the municipality has not been able to find a better way to dispose of it other than by throwing it in a bin and sending it to a landfill. Not only is this method of disposal costly in terms of transportation and manpower, but the waste remains in the ground and takes over 100 years to decompose naturally, which takes valuable land resources away.

In 2017, CH Green and the MBPJ government began working together to explore new ways to dispose of this waste, aiming to reduce the amount of hard-to-degrade waste going to landfill, particularly polystyrene. To this end, the municipality established the MBPJ recycling centre where polystyrene is recycled so that it can be reused. In order to better deal with polystyrene waste they found GREENMAX, the world's leading supplier of polystyrene densifiers, who specialise in polystyrene recycling work.

GREENMAX is a key player in this project. It offers not only a polystyrene densifier, but also a complete polystyrene recycling package, including collection, compression, storage and buy-back. CH Green set up a polystyrene recycling hall for GREENMAX to showcase the entire closed loop of INTCO polystyrene recycling.

To date, the GREENMAX M-C50 polystyrene densifier has been operating at the recycling centre for over six months, helping them to recycle polystyrene from over 500 municipal bins and saving significant transportation and landfill costs. More importantly, a growing number of Petaling residents are aware that polystyrene is a recyclable material and have indicated that all polystyrene will be recycled instead of discarded in the future.

The company's role as the first recycling centre under the Malaysian City Hall, in which polystyrene is recycled, has been a great success. In the near future, specialist polystyrene recycling company GREENMAX will continue to work with CH Green to set up more recycling centres to recover more polystyrene waste and to promote the circular economy to some extent.