Shanghai chlor-alkali HPPO project polyether plant a successful start-up, Huayi Qinzhou phase III trial production prelude to open

On May 12, 2026, China Shanghai Chlor-Alkali Chemical Co., Ltd. HPPO project polyether plant successfully produced qualified products, a successful start-up. As the first core device of the project to be put into operation, this node marks that the HPPO project has officially entered the trial production stage from the engineering construction stage.

Project background and industrial chain layout

the HPPO project is a key sub-project of the third phase of China Huayi Group's Guangxi Qinzhou base, using the HPPO process route (hydrogen peroxide direct oxidation of propylene oxide to propylene oxide) to build a complete integrated industrial chain from hydrogen peroxide to polyether polyols. The scale of each core unit is as follows: hydrogen peroxide 300000 tons/year, propylene oxide (PO) 300000 tons/year, polyether polyol 200000 tons/year, polymer polyol 50000 tons/year.

The above-mentioned device forms a vertical integrated layout of "hydrogen peroxide & rarr; propylene oxide & rarr; polyether/polymer polyol", with completely self-supplied raw materials, effectively suppressing the risk of external cost fluctuations, which is the core competitive advantage of the project different from most Chinese polyether manufacturers.

Driving progress: two nodes have landed one after another.

As for the hydrogen peroxide plant, the 300000-ton/year hydrogen peroxide plant owned by Guangxi Huayi Chlor-Alkali Company has been completed in January 2026 and transferred to the production preparation stage. As the source device of the whole process chain, its readiness lays the foundation for subsequent joint production.

In terms of polyether plant, the first start-up successfully verified the quality of engineering construction and the technical capability of the commissioning team, providing an important reference for the subsequent start-up of propylene oxide and polymer polyol plant.

Potential Impact on Polyether Polyols Market

200000 tons/year polyether polyol with 50000 tons/year polymer polyol, a total of 250000 tons/year of production capacity in China belongs to the head scale. With the gradual climbing of production capacity, it is expected to form a substantial disturbance to the supply pattern of polyether polyols in South China and even the whole country, and relevant traders need to pay attention to regional price trends in advance.

Compared with the traditional chlorohydrin method or co-oxidation method, the HPPO route has fewer by-products and is more environmentally friendly, and the overlay of 300000 tons of PO capacity is completely self-supplied, giving it a clear advantage at the raw material cost end. For small and medium-sized polyether producers and traders who purchase PO, the competitive landscape with such integrated devices needs to be re-examined.

Follow-up key observation window

the start-up dynamics of the propylene oxide plant is currently the most worthwhile node to track. Once the PO device is put into operation, the entire industrial chain will have the conditions for linkage production, when the market supply and demand rhythm or will appear obvious changes. It is recommended that the industry continue to pay attention to Huayi Qinzhou Phase III follow-up start-up announcement.