A total maintenance period of 65 days! Red Sun Nanjing Biochemical Paraquat facility to shut down starting August 5.
Nanjing Red Sun announced that its wholly-owned subsidiary, Nanjing Red Sun Biochemical Co., Ltd. (Nanjing Biochemical), will conduct a phased planned shutdown and maintenance of its paraquat facility. This maintenance is divided into two time periods.
The first phase of maintenance is scheduled from August 5 to September 25, 2026, with a duration of 50 days. The focus will be on core equipment replacement, hazard rectification in the production system, maintenance of piping and automation systems, and verification of safety facilities.
The second phase is set for December 1 to December 15, 2026, lasting 15 days. Taking advantage of the park's power outage window, the company will carry out final commissioning, spot maintenance, and optimization and modification of the winter anti-freezing system.

Phased decline in production, stockpiling and order scheduling to offset supply impact
Red Sun stated that during the maintenance period, paraquat production at Nanjing Biochemical will experience a phased decline. The maintenance costs incurred will be included in current costs, which will have a minor impact on the company's phased performance in 2026.
The company stated that it has already coordinated stockpiling and planned order scheduling in advance to minimize supply disruptions caused by the maintenance. Upon completion of the facility maintenance, various hazards associated with aging equipment can be resolved, further improving the safe and stable operation capability of the facility.
Core subsidiary swung from profit to loss last year
Nanjing Biochemical is an important wholly-owned subsidiary within the Red Sun system, primarily engaged in the production and sales of agrochemical products. According to data from the 2025 annual report, the subsidiary achieved operating revenue of 744 million yuan and a net profit loss of 96 million yuan, swinging from profit to loss.
At the performance briefing in May 2026, Red Sun's management revealed that all long-term agreements for paraquat have been fully digested, and currently, only short-term orders are being executed. Production and operation were smooth in the second quarter, with prices for major products such as paraquat and paraquat dichloride trending upward, and the company has sufficient orders on hand.
Aiming at overseas gaps, seizing global market opportunities for paraquat
Changes are occurring in the global supply side, as Syngenta has terminated its global paraquat production business. Red Sun proposed that it will leverage its competitive advantages across the entire industrial chain to continuously expand market channels and actively seize the international paraquat market share that has been released.
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Commodity Price Chart
| Product name | Price (yuan/ton) | Price Limit |
|---|---|---|
| Trifluoroacetic acid | 38075.00 | +15.47% |
| 1,3-butadiene | 11733.33 | +12.53% |
| Isobutyraldehyde | 8233.33 | +9.29% |
| Propylene oxide | 10000.00 | +8.70% |
| BR | 14680.00 | +8.58% |
| ECH | 10800.00 | -6.90% |
| SBR | 14650.00 | +6.87% |
| Bromine | 39500.00 | +6.76% |
| Cyclohexanone | 9200.00 | +6.36% |
| Propylene Glycol | 9766.67 | +6.16% |
| Lithium carbonate | 149000.00 | +5.67% |
| Methanol | 2810.00 | +5.64% |
| ABS | 10050.00 | +5.60% |
| Lithium carbonate | 152000.00 | +5.56% |
| Hydrogen peroxide | 576.67 | -5.46% |
Commodity Intelligence
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