The Chinese growth target for this year has been cut to around 6.5%, down from 6.5 to 7% last year, Premier Li Keqiang has announced.
He was addressing the country’s rubber-stamp parliament, the National People’s Congress (NPC), which has gathered in Beijing for its annual session.
The Chinese economy expanded at its slowest pace in 26 years in 2016.
Mr Li said he would tackle state “zombie enterprises” producing more coal and steel than the market needed.
Similar pledges in the past have proved hard to fulfil.
More than 3,000 legislators are meeting in the Great Hall of the People.
The NPC and its advisory body hold ceremonial meetings every year known as “lianghui” or “two sessions”.
The Chinese premier described the world’s second-largest economy as a butterfly struggling to emerge from a chrysalis.
He said this transformation was filled with promise but also great pain.
He repeatedly paid tribute to Communist Party leader Xi Jinping and said that under the sound leadership of the Party, the Chinese people had the courage and ingenuity to overcome all difficulties.
His list of China’s difficulties ranged from the smog which blankets much of the country to the laziness of some government officials.
And in a veiled reference to US President Donald Trump’s complaints about China’s exchange rate and trade policies, Mr Li warned of a far more complicated global picture in the year ahead with China facing the threat of growing protectionism.
NPC leaders are tolerating slightly slower economic growth this year to give them more room to push through some painful reforms to deal with a rapid build-up in debt, Reuters news agency reports.
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