China’s manufacturing industry is once again more optimistic about the business situation after a few gloomy months. The Purchasing Managers’ Index (PMI) rose to 50.8 points in March, an increase of 1.7 percentage points compared to the previous month, according to the statistics office in Beijing on Sunday. This seems to have brightened the mood in the executive suites of the companies surveyed, as the PMI value exceeded the important threshold of 50 points again after six months. Above this level, statisticians assume that business activity is expanding. In the non-manufacturing sector, whic…