Hubei Yihua Group recently disclosed that it intends to investin Yichang City's Yaojiagang Chemical Park, Zone B, to buildan integrated carbonate solvent project, laying outelectronic-grade electrolyte solvents and high-end chemical productsThis project was announced in the environmental impact assessment public notice by the Yichang Ecological Environment Bureau in March 2026 and is planned to formally start construction in May this year.1. Project overview and investment scale

·

Project location: Yaojiagang Chemical Park, Zone B, Yichang City· 

Total investment:(approximately CNY 4.888 billion)· Construction period: 24 months; start May 2026, commissioning May 2028

· Core products: focusing on

electronic-grade dimethyl carbonate (DMC),ethanol, ethyl methyl carbonate (EMC), diethyl carbonate (DEC) and ethylamine; the products are widely used in lithium‑battery electrolytes, pharmaceuticals, pesticides and other fields.2. Major units and production capacityThe project will build multiple sets of high-end chemical units to form an integrated industry chain:

· 

Dimethyl carbonate (DMC)

unit: 300,000 tonnes/year(electronic-grade)·  ethanol

unit:200,000 tonnes/year· 4.888 billion CNY

4.88771 billion CNYCarbonatesCapacity: 100,000 t/year (including EMC 83,300 t, DEC 16,700 t, both electronic grade)

· EthylamineFacility:30,000 t/year(including monoethylamine 7,500 t, triethylamine 22,500 t)

· Supporting facilities: H₂/CO separation unit (cryogenic + PSA) and utilities.

3. Core process technologies

· Dimethyl carbonate (DMC): usingmethanol low-pressure gas-phase oxidative carbonylation. Using CO and methanol as feedstocks, catalyzed by PdCl₂, one-step synthesis is carried out at 110–130°C and 0.2–0.5 MPa to directly produce electronic-grade product.

· Ethyl methyl carbonate / diethyl carbonate (EMC/DEC): usingtransesterification. Using DMC and ethanol as feedstocks, EMC and DEC are produced in two steps via heterogeneous reactions over acidic and basic solid catalysts; reaction conditions are mild (atmospheric pressure, 60–110°C).

· Ethanol: usingDMTE technology(dimethyl ether hydrogenation), producing high-purity ethanol through four main units: dimethyl ether synthesis, carbonylation, hydrogenation, and purification.

· Ethylamine:catalytic amination of ethanol with ammonia, by controlling feed ratios and parameters, co-producing monoethylamine and triethylamine.

4. Project significance

This investment represents Hubei Yihua's shift from traditional fertilizer chemicals towardA key strategic move in the transition to new energy materials and fine chemicalsThe project focuses onelectronic-grade electrolyte solventswhich aligns with the lithium battery industry's strong demand for high‑purity materials; once completed, it will significantly enhance the company's value and competitiveness within the new energy supply chain.