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Investor Presentaiton

2. Brief history of resilient (sponge) city development October 22, 2014: Ministry of Housing & Urban-Rural Development issued "Technical Guidelines for Sponge City Development"— Building rainwater systems for low impact development. • Goal • guide low impact development mode throughout the country • compulsory requirements for runoff reduction prioritize use of natural drainage system to construct ecological draining systems • Principle: guided by planning, prioritizing ecology, emphasizing security, location specific, and integrated construction • Technologies: permeable surface, green rooftop, depressed green areas, biological barrier facilities, rainwater wetlands, water storing pools, water tanks, planted gullies, vegetation buffer zones, etc.
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