 Hi, have you ever heard about industrial symbiosis before? Let's take a look at this. Industrial symbiosis is to process by which race or byproducts of an industry. It's been reused by other industry as raw materials for its company. And this could improve business among the company. As they can gain more money. Additionally, it brings companies together in innovative collaborations. To reuse the waste from one as raw materials for another. Let's take a look at these two businessmen. Each of them have their own factory. They produce waste respectively from their factory. The reasons they've come out with an idea to run an industrial symbiosis. One company's waste can become another company's bitstock. Example of industrial symbiosis in waste-centered bags hungry. Domestic industrial municipal activity contribute to waste that will be transformed to increase stocks. Process in the waste-centered bags hungry. Recycle bowls such as collective collections will undergo materials rehabilitation to produce outputs that will increase the company sales. Besides, green waste such as garden waste collection will undergo process in composting plant to produce output for fertilizer in agriculture. Green waste such as garden waste collection will undergo process in composting plant such as mechanical and biological treatment to produce biogas for biofuel company. Residual waste once again will undergo mechanical treatment to produce outputs such as fuels and metals to be used by the power plant. Residual waste will once again undergo mechanical and biological treatment and eventually will be end up in the landfill. Industrial symbiosis has both economical and environmental benefits. Economical benefits among stakeholders. First, industrial symbiosis can enhance profitability and competitiveness among companies by lowering resource costs. Second, industrial symbiosis opens up new and creative industries emerging from previously untapped industrial flow opportunities. Third, industrial symbiosis historically help to support and promote traditional Nordic industries which are paper and pop, steel and also manufacturing. Environmental Benefit. Reduce greenhouse gas emissions. Natural resource depletion decrease. However, alongside the development process to achieve industrial symbiosis there are still some barriers of industrial symbiosis. First, difficulty in trust and cooperation. Second, uncertainties and inconveniences in regulatory compliance. Third, technical impossibilities. Fourth, lack of information, commitment and community awareness. Thus the world must learn new ways to collaborate. Here are three suggestions to encourage industrial symbiosis through a program, research, laws and regulations. The first one is government and other institutions can promote industrial symbiosis through a program that reducing taxes and provide economy incentives to the industry. Second is research organizations can help and guide the industry to make a better decision before adopting industrial symbiosis in terms of design and information. Lastly, laws and regulations can be made to encourage the industry to work together and start a symbiotic relation between them. Industrial symbiosis can help reduce the impact on the environment reduce demands on the earth's soils, lead to sustainable environment.