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SunSirs: The Bottom Support Had Improved, and the Silicon Market Was Operating Upward
September 17 2025 15:35:07SunSirs(John)

Price trend

According to the analysis of the market monitoring system of SunSirs, on September 15, the reference market price of domestic silicon 441# was 9,560 RMB/ton. Compared with September 7 (the market price of silicon 441# was 9,390 RMB/ton), the price increased by 170 RMB/ton, a 1.81% increase. Compared with September 1 (the market price of silicon 441# was 9,360 RMB/ton), the price increased by 200 RMB/ton, a 2.14% increase.

The recent silicon market saw a narrow upward trend 

From the commodity market analysis system of SunSirs, it can be seen that recently, the overall domestic silicon market has shown a narrow upward trend, and the transaction center of gravity has risen slightly. As of September 16, the price reference of 441# in East China was 9,500-9,700 RMB/ton, the market price reference of 441# silicon in Kunming was 9,400-9,600 RMB/ton, the market price reference of 441# silicon in Huangpu Port was around 9,500-9,700 RMB/ton, the market price reference of 441# silicon in Tianjin was 9,500-9,600 RMB/ton, the market price reference of 441# silicon in Sichuan was 9,200-9,300 RMB/ton, and the market price reference of 441# silicon in Shanghai was 9,700-10,000 RMB/ton.

Analysis of market influencing factors

Cost: In September, the market prices of caking coal and charcoal in Xinjiang increased, while the prices of other industrial silicon raw materials remained stable, and the overall cost support of silicon was strengthened.

On the demand side: In September, overall polysilicon production in the downstream market remained stable, with high production schedules and robust demand for silicon raw materials. The overall operating rate of downstream organosilicon production saw a slight increase, with some individual plants increasing their production capacity, though price pressure on raw material procurement remained the main driver. The overall operating rate of downstream aluminum-silicon alloy production saw a slight increase, reflecting a modest recovery in downstream demand. The increase in operating rates was primarily driven by adjustments in operating rates by leading companies. Combined with expectations of increased downstream market demand ahead of the National Day holiday, the overall market demand outlook showed improvement.

Market outlook

As of September 16, the trading atmosphere in the silicon market was mild, the industry players were in a good mood, and the start-up and demand of the silicon market are expected to increase simultaneously. The silicon data analyst of SunSirs predicts that in the short term, the domestic silicon market will be mainly stable with a slight upward trend. Specifically, it’s needed to pay more attention to the changes in supply and demand and the replenishment rhythm of the downstream market on the eve of National Day.

If you have any inquiries or purchasing needs, please feel free to contact SunSirs with support@sunsirs.com.

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