On May 9, Shaanxi Xinyuan Jieneng put four calcium carbide furnaces into maintenance. The ex-factory trade price is reported at 2,350 CNY/ton, with actual transaction prices mainly determined through negotiation. Chempricehub's assessment of calcium carbide: long/short score: 1. The maintenance of these four furnaces will temporarily reduce local supply, providing support to spot prices. Currently, the producer's ex-factory trade offer is 2,350 CNY/ton, with actual transactions subject to negotiation—this is considered a moderately positive factor.