Wanhua Chemical to halt Yantai ethylene phase II unit for about 60 days of maintenance
In short
Wanhua Chemical (万华化学) said on October 8 that the 1.2 million tonnes per year phase II ethylene unit at its Yantai industrial park will stop production for maintenance from October 10, 2026, for about 60 days. The phase I ethylene unit of the same capacity will keep operating normally, and the company said the routine shutdown will not have a major impact on its production and operations.
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Wanhua Chemical (万华化学) said in an announcement on October 8 that the 1.2 million tonnes per year phase II ethylene unit at its Yantai industrial park will stop production for maintenance starting on October 10, 2026. The maintenance is expected to take about 60 days, according to the announcement as reported by CLS, 36Kr and Jiemian; Yicai carried the news as a headline. [ 1 , 2 , 3 , 4 ]
The company said the shutdown follows its annual maintenance plan and is intended to keep the production units running safely and effectively, given the characteristics of chemical production processes. During the period, the park's phase I ethylene unit, also rated at 1.2 million tonnes per year, will continue normal production. Wanhua Chemical, which CLS identified by its stock code 600309.SH, said the routine maintenance will not have a major impact on its production and operations. [ 1 , 3 , 4 ]
Why it matters
The shutdown takes one of the two 1.2 million tonnes per year ethylene units at the Yantai park offline for roughly two months. The company describes it as planned annual maintenance with no major impact on its business, and business and tech outlets relayed its announcement without further comment.
Key facts
- Wanhua Chemical announced on October 8 that the phase II ethylene unit at its Yantai industrial park will stop production for maintenance. [ 1 , 2 , 4 ]
- The phase II unit has a capacity of 1.2 million tonnes of ethylene per year. [ 1 , 3 , 4 ]
- The shutdown starts on October 10, 2026, and maintenance is expected to last about 60 days. [ 1 , 3 , 4 ]
- The 1.2 million tonnes per year phase I ethylene unit at the park will continue normal production during the maintenance. [ 1 , 3 , 4 ]
- The company said the shutdown is routine maintenance under its annual plan and will not have a major impact on its production and operations. [ 1 , 3 , 4 ]
- CLS identified the company by its stock code, 600309.SH. [ 1 ]
Confirmed by several sources
- Nothing is confirmed by two independent outlets yet.
Still unclear
- The exact date the phase II unit will restart. The announcement gives only an approximate duration of about 60 days.
- How much ethylene output will be lost during the shutdown. The documents give the unit's capacity but no estimate of lost production or financial effect beyond the company's statement that the impact is not major.
- The 1.2 million tonnes per year phase II ethylene unit at Wanhua Chemical's Yantai industrial park will stop production for maintenance from October 10, 2026. Reported by a single source so far
- The maintenance is expected to last about 60 days. Reported by a single source so far
- The phase I ethylene unit at the park will keep producing normally during the maintenance. Reported by a single source so far
- The company said the planned maintenance will not have a major impact on its production and operations. Reported by a single source so far