I invested in YHM, formerly known as China Enersave, since 2008. Recently, I noted that it is currently one of the top traded stock in Singapore stock market. I would like to share with my readers my investment experience on this stock.Back in 2008, China Enersave was a company that specialized in building and operating biomass generation plants in China. The business model was good as it collected waste biomass from farmers in China and used the waste as feedstock to generate electricity. However, instead of focussing on the renewable energy sector, the company made the terrible mistake of investing in one coal powerplant. The management team hope to generate revenue from the coal powerplant to fuel the expansion of its biomass plants. Apparently this strategy did not work out as the fluctuating coal prices hurt their revenue from the coal powerplant. Second mistake by the company was that it had ...