On February 4th, the delivered price of crystalline acrylic acid from Shanghai Huayi New Materials in East China was 6,600 yuan per ton, an increase of 100 yuan per ton compared to the previous quoted day, with actual orders subject to negotiation. PriceSeek analysis of acrylic acid, long-short score: +1. The article indicates that the delivered price of acrylic acid in East China rose by 100 yuan per ton to 6,600 yuan per ton on February 4th, suggesting tight spot market supply or increased demand, which is favorable for spot prices. The score is +1 (generally positive), as the significant increase is primarily driven by actual order negotiations, reflecting cautious optimism in the market, with no mention of futures data.