Long Son Petrochemical Restarts Vietnam Operations after 10-Month Suspension Hero Image

Chemical Processing

Long Son Petrochemical Restarts Vietnam Operations after 10-Month Suspension

Long Son Petrochemical has resumed operations at its petrochemical complex in Long Son Commune, Ho Chi Minh City

Released on Wednesday, September 17, 2025
Researched by Industrial Info Resources (Sugar Land, Texas)--Long Son Petrochemical Co., Ltd (LSP), a subsidiary of Thailand's Siam Cement Group (SCG), invested more than $5 billion to build a petrochemical complex in Long Son Commune, Ho Chi Minh City (formerly Vung Tau City before the province was merged), Vietnam. The project includes an olefins plant with a 1.35 million ton-per-year (T/Yr) capacity and three polyolefin plants that can produce a combined 1.4 million T/Yr, along with essential port and storage facilities. In October 2024, just a month after the start of commercial operations, the plant was shut down due to volatile crude oil prices, which causes profits to fall.

In the third quarter of this year, oil prices showed a downward trend. This turn of events resulted in LSP resuming operations on August 20 after a 10-month suspension. Subscribers to Industrial Info's Global Market Intelligence (GMI) Chemical Processing Plant Database can click here for the plant profile.

Alongside the restart, LSP is implementing the Long Sơn Petrochemical Enhancement Project (LSPE) to build two ethane storage tanks with an investment of US$500 million. Each tank will have a capacity of approximately 55,000 tons and require a temperature as low as -90 degrees Celsius. The construction is expected to be completed by the end of 2027 . Subscribers can click here for the project report.

Industrial Info Resources (IIR) is the leading provider of industrial market intelligence. Since 1983, IIR has provided comprehensive research, news and analysis on the industrial process, manufacturing and energy related industries. IIR's Global Market Intelligence (GMI) helps companies identify and pursue trends across multiple markets with access to real, qualified and validated plant and project opportunities. Across the world, IIR is tracking more than 200,000 current and future projects worth $17.8 Trillion (USD).

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