Is China's corn starch capacity still growing, or has it entered oversupply?

Is China's corn starch capacity still growing, or has it entered oversupply?
Corn starch is a mature, structurally oversupplied product with thin margins. Output reached 22.14 million tonnes in 2016, about 98% of all starch produced, after the northeast corn reserve reform pushed feedstock prices into a reasonable range and lifted plant operating rates. By 2022 output had grown to 37.81 million tonnes before slipping about 3% as processing margins turned negative and downstream demand recovered slowly. Concentration is high: the top ten producers hold close to 70% of the market, led by Zhucheng Xingmao, Meihua, Fufeng, Jinneng Golden Corn and Yufeng. Cassava starch, by contrast, is shrinking as planting area declines.