BEIJING — A bread company can’t get all the power it needs for its bakeries. A chemicals supplier for some of the world’s biggest paint producers announced production cuts. A port city changed electricity rationing rules for manufacturers four times in a single day.China’s electricity shortage is rippling across factories and industries, testing the nation’s status as the world’s capital for reliable manufacturing. The shortage prompted the authorities to announce on Wednesday a national rush to mine and burn more coal, despite their previous pledges to curb emissions that cause climate change.Mines that were closed without authorization have been ordered to reopen. Coal mines and coal-fired power plants that were shut for repairs are also to be reopened. Tax incentives are being drafted for coal-fired power plants. Regulators have ordered Chinese banks to provide plenty of loans to the coal sector. Local gov …
