800 tons/year! The high-end EVA pilot plant in Sirbang enters trial production.

The first phase of the 800-ton/year high-end EVA new material pilot project of Jiangsu Silbang Petrochemical Company completed the completion of the independent acceptance publicity of environmental protection on October 15, marking that the project has entered the trial production stage. The project focuses on high-end products such as ethylene-vinyl alcohol copolymer, which is a technical extension and upgrade based on the existing EVA device.

basic Project Information

• project Name: 800 Tons/Year High-end EVA New Material Pilot Project of Jiangsu Sierbang Petrochemical Co., Ltd. (Phase I)
• project nature: expansion
• construction site: Lianyungang City, Jiangsu Province, the National East, Central and Western Regional Cooperation Demonstration Zone, the existing factory area of Sirbang to the east of the fourth road in front of the port and to the north of the second road of the mountain.
• Project scale: a set of 800t/a high-end EVA new material pilot plant and supporting facilities will be constructed in the first stage.
• Commissioning time: August 2025

main points of technological innovation

it is worth noting that the technical route of the project has obvious differentiation characteristics. The product produced by the existing EVA device in Sirbon is ethylene-vinyl acetate copolymer (traditional EVA), while the pilot product ethylene-vinyl alcohol copolymer (EVOH) is further alcoholysis on the basis of ethylene-vinyl acetate copolymer, and the polymerization parameters of ethylene and vinyl acetate are also different. This means that Sirbon not only extends on the basis of the existing product line, but also expands into the field of barrier materials with high added value and high technical barriers.

Enterprise background

jiangsu Sirbon Petrochemical Co., Ltd. was established in December 2010. It is a wholly-owned subsidiary of Jiangsu Shenghong Petrochemical Industry Group Co., Ltd. with a registered capital of 5.588 billion yuan. As an important chemical production platform of Shenghong Group, Sirbon has mature production experience and technology accumulation in the field of EVA.

current situation of high-end EVA market

EVA (ethylene-vinyl acetate copolymer) as an important polymer material, in recent years in photovoltaic, shoe materials, hot melt adhesive, wire and cable and other fields of demand continued to grow. Especially driven by the "double carbon" target, photovoltaic grade EVA film material has become the focus of the market. In 2024, the domestic demand for photovoltaic grade EVA has exceeded 1 million tons, and it still maintains double-digit growth.

Supply Chain Pain Points

at present, domestic high-end EVA products have been imported for a long time, especially high VA products with vinyl acetate content above 28%, with high technical threshold and domestic self-sufficiency rate of less than 40%. This supply chain structure makes domestic enterprises subject to people in terms of raw material cost, delivery cycle and product customization, which seriously restricts the competitiveness of downstream industries. Import dependence not only drives up procurement costs, but also puts supply chains at geopolitical risk.

pull effect on upstream suppliers

the increase in domestic high-end EVA production capacity will directly drive the demand for upstream raw materials such as ethylene and vinyl acetate monomers. As more enterprises lay out high-end EVA, it will further promote the overall prosperity of the petrochemical industry chain and create new growth points for upstream enterprises.

Value empowerment for downstream customers

the increase in the supply of domestic high-end EVA will break the pattern of import dependence, help downstream enterprises to reduce procurement costs, shorten the supply cycle, and promote product customization development. Especially for photovoltaic enterprises, the localization of raw material supply will significantly enhance their cost competitiveness and supply chain resilience in the global market, which is particularly important in the context of the current complex and changeable international trade environment.

Industry Demonstration and Technology Spillover

the technological breakthrough of Sirbon will have a significant demonstration effect, which may stimulate more enterprises to increase investment in high-end EVA research and development, and accelerate the overall technological progress of the industry. The exploration experience from the pilot plant to industrial production will also provide valuable reference for the latecomers.

market timing

from the time node, the project completed commissioning in August 2025, when the photovoltaic industry a new round of expansion cycle start-up period. If the performance of the pilot product meets the standard and is recognized by the downstream, Sirbon is expected to choose the opportunity to build a 10,000-ton or even larger industrial plant in 2026-2027 to seize the market opportunity and form a first-mover advantage. For chemical traders, this means that the supply pattern of domestic high-end EVA may change significantly in the next 2-3 years, and the procurement strategy and supplier layout need to be adjusted in advance.