Dynagreen Environment Protection Group, which collects, stores and incinerates garbage, has surged almost 500 percent since its shares began trading in Shanghai on June 11, the best-performance among stocks listed in the city this year. It’s among the waste specialists poised to cash in on China’s carrot-and-stick approach to cope with the world’s biggest trash flow.

The government said this month that households across the nation will, for the first time, have to pay for garbage disposal by 2020 and, separately, that limits on landfills will be tightened. Other recent initiatives include raising recycling quotas in 46 major cities, including Beijing and Shanghai.

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