商品日报（4月28日）：聚酯链集体领涨 油粕金属大面积下跌

Group 1: Commodity Market Overview - The domestic commodity futures market experienced a weak trend on April 28, with the China Securities Commodity Futures Price Index closing at 1376.15 points, down 5.55 points or 0.40% from the previous trading day [1] - The energy and chemical sector showed strength, particularly in the polyester chain, with short fibers, low-sulfur fuel oil, and PTA recording approximately 2% gains [1][3] - In contrast, the metal sector continued to adjust, with polysilicon leading the decline, dropping over 3%, while gold and silver fell more than 1% [1][4] Group 2: Polyester Chain Performance - The polyester industry chain maintained a strong performance, with short fiber futures leading the market with a 2.08% increase, while PTA and bottle chips also rose over 1% [3] - Global trade tensions have lessened their impact on market sentiment, and the recovery of international oil prices has supported the stabilization of energy and chemical products [3] - However, there are concerns regarding weak demand in both domestic and foreign trade, leading to increased inventory levels in short fiber factories [3] Group 3: Metal Sector Weakness - The metal sector, including energy metals, faced a collective downturn, with polysilicon dropping 3.05%, and lithium carbonate and industrial silicon also declining [4] - Despite a previous rebound due to production control rumors, the demand for photovoltaic installations has cooled, exacerbating supply-demand imbalances for silicon materials [4] - The overall sentiment in the metal market remains bearish, with expectations of continued pressure on polysilicon prices due to weak future demand and slow inventory depletion [4] Group 4: Oilseed and Oil Market Trends - The oilseed and oil market also saw a collective decline, with soybean meal, palm oil, and No. 2 yellow soybeans all dropping over 2% [5] - The market sentiment turned negative due to downstream resistance to high-priced soybean meal, alongside a retreat in U.S. soybean prices and expectations of increased domestic oilseed supply [5] - In the absence of substantial positive fundamentals, the oilseed market is likely to maintain a weak and volatile trend [5]