According to data from the National Bureau of Statistics, in December 2025, China's ethylene output reached 3.563 million tons, a year-on-year increase of 3.0%. From January to December, the cumulative ethylene output in China was 41.508 million tons, a year-on-year increase of 6.4%.

PriceSeek analysis of ethylene, with a long-short rating of -1.5:
Data from the National Bureau of Statistics show that ethylene output in 2025 increased by 6.4% year-on-year, indicating a significant rise in supply. This may lead to an oversupply in the spot market, putting downward pressure on prices. The rating of -1.5 reflects a generally bearish impact, as although the growth rate is not extreme, its sustainability could suppress short-term price rebounds.