Cornerstone Melamine Plant Maintenance: India Supply Alert

Cornerstone Chemical shuts melamine for maintenance

Jun 15, 2026

Cornerstone Chemical has taken its melamine unit off-stream early this week. A source in the US informed a team member, “The company initiated maintenance turnaround at the unit on March 9, 2026. Further details on the duration of shutdown could not be ascertained.” Located in Waggaman, Louisiana in the US, the melamine unit has a production capacity of 80,000 mt/year.