Bloomie runs a series of leading indicators for China. They are not comprehensive but aren’t bad, either as a general leading indicator:
Bloomberg Economics generates the overall activity reading by aggregating a three-month weighted average of the monthly changes of eight indicators, which are based on business surveys or market prices.
Note the weakness especially in commodity-intensive areas of the economy: realty, cars, factories and steel inventories.
With perhaps the exception of cars, I expect all to get worse through H2.