China’s factory-gate prices continued to rise in June despite a temporary easing of the US-Iran conflict that had previously driven up energy costs, while domestic demand remained weak.The producer price index (PPI) increased 4.1 per cent year on year last month, compared with a 3.9 per cent rise in May, according to data released by the National Bureau of Statistics (NBS) on Thursday.The increase matched a projection from economists polled by financial data provider Wind.Meanwhile, the...