Profits fell 20.6% in January-April from a year earlier, compared with a 21.4% decline in the first three months, according to data from the National Bureau of Statistics (NBS).

In April alone, industrial firms posted a 18.2% drop in profit year-on-year, according to the NBS, which only occasionally gives monthly figures. Profits shrank 19.2% in March.

Chinese companies are struggling with both weak demand at home as a post-COVID rebound loses steam and softening demand in the country's major export markets. Industrial output picked up in April but was still well below expectations.

Lenovo, the world's largest PC maker, said this week that quarterly revenue and profit tanked in January-March and it had cut 8% to 9% of its workforce to reduce costs, as global demand for personal computers (PCs) continued to slump.

Producers of steel and other industrial metals are also hurting. Prices for steel reinforcing bars used in construction hit the lowest level in three years this week, and only a third of the country's mills are currently operating at a profit, according to consultancy Mysteel.

Foreign firms saw their profits slide 16.2% in January-April from a year earlier, while private-sector firms recorded a 22.5% plunge, according to a breakdown of the data.

Profits sagged for 27 of 41 major industrial sectors during the period, with the ferrous metal smelting and rolling processing industry reporting the biggest slump at 99.4%.

The Saturday readings came after a batch of April economic indicators, spanning industrial output, retail sales and property investment, suggested that a recovery in the world's second-largest economy is losing momentum.

Beijing has set a modest growth target of around 5% for this year. Signs of a brisk recovery in the wake of the country's abrupt end of COVID curbs late last year had prompted many institutions including the World Bank to raise their China growth estimates for 2023.

Nonetheless, some investment banks have recently lowered their 2023 China growth forecasts after the April data disappointment, with Nomura ratcheting down its prediction to 5.5% from 5.9% previously and Barclays revising its view down to 5.3% from 5.6%.

Earlier this month, Premier Li Qiang vowed more targeted measures to expand domestic demand and stabilise external demand in an effort to promote a sustained economic rebound.

Industrial profit numbers cover firms with annual revenues of at least 20 million yuan ($2.89 million) from their main operations.

($1 = 6.9121 Chinese yuan renminbi)

(Reporting by Ella Cao, Qiaoyi Li and Bernard Orr; Editing by Kim Coghill)