PLAQUEMINE, La. — A proposed full property-tax exemption for Shintech Louisiana’s $3.4 billion manufacturing expansion has advanced through the state review process, raising a consequential question about how Louisiana balances major industrial investment against local tax revenue.
The Louisiana Board of Commerce and Industry approved the company’s Industrial Tax Exemption Program application at a 100% rate last week, according to reporting published November 4 by 10/12 Industry Report. The decision is not final: Gov. Jeff Landry must still approve the exemption.
Shintech plans a second ethylene unit, new chlor-alkali and vinyl chloride monomer units, and related utilities and infrastructure at its complex near Plaquemine. The first phase is expected to be completed in 2030.
Louisiana Economic Development previously projected 163 new direct jobs, with an average annual salary of $117,329, while retaining 725 existing positions. The project is also expected to support construction employment and additional contractor work. These are projections tied to the expansion, not a count of jobs already created.
The property-tax question is substantial. According to the company’s application figures reported by 10/12 Industry Report, the new investment could generate approximately $52.6 million in property taxes in a fully taxable year before exemptions. Under a standard 80% exemption, roughly $10.5 million would remain payable on that qualifying new property in such a year. At 100%, that qualifying new property would be exempt during the approved exemption period.
The difference illustrates why the rate matters to local governments, even as supporters argue that large industrial projects create payroll, supplier business and long-term economic activity. The exemption concerns qualifying new investment, not the company’s entire existing tax base. The report says Shintech paid about $8.7 million in property taxes on its existing site in the most recent year described in the application.
An Iberville Parish review committee recommended the full exemption in June under provisions for large “megaprojects.” The state board’s subsequent approval brings the request to the governor for a final decision.
The proposal therefore remains a pending incentive decision rather than an enacted tax break. A final approval would have implications both for the expansion’s economics and for the future revenue local taxing bodies could otherwise collect on the new property.
As Louisiana continues competing for multibillion-dollar chemical and energy projects, Shintech’s application offers a specific test of the state’s current incentive rules: how much tax relief should be offered to secure investment, and how should the resulting benefits and foregone revenue be measured?
Sources
10/12 Industry Report, Nov. 4, 2026 — https://www.1012industryreport.com/industry/shintech-edges-closer-to-100-percent-property-tax-exemption-for-3-4b-expansion/
