Core Viewpoint - The monitoring of market prices for 50 important production materials across nine categories shows a mixed trend, with 11 products experiencing price increases, 35 seeing declines, and 4 remaining stable in early June 2025 compared to late May 2025 [2]. Group 1: Price Changes in Major Categories - In the black metal category, prices for rebar, wire rod, and ordinary plates decreased by 1.0% to 1.7%, with rebar priced at 3111.1 yuan per ton [4]. - In the non-ferrous metal category, electrolytic copper saw a price increase of 0.4% to 78731.7 yuan per ton, while aluminum ingots decreased by 0.6% to 20203.3 yuan per ton [4]. - Chemical products experienced varied changes, with sulfuric acid increasing by 2.3% to 635.8 yuan per ton, while methanol decreased by 2.5% to 2137.0 yuan per ton [4]. Group 2: Energy and Coal Prices - In the petroleum and natural gas sector, liquefied natural gas (LNG) prices fell by 1.1% to 4264.2 yuan per ton, while gasoline prices increased by 1.1% to 8372.1 yuan per ton [4]. - Coal prices showed a decline, with anthracite coal dropping by 3.6% to 914.8 yuan per ton and coke decreasing by 5.6% to 1181.4 yuan per ton [4]. Group 3: Agricultural Products and Inputs - Among agricultural products, rice prices increased slightly by 0.2% to 4036.8 yuan per ton, while wheat prices decreased by 0.6% to 2415.3 yuan per ton [5]. - Fertilizer prices also saw a decline, with urea dropping by 1.4% to 1864.3 yuan per ton [5]. Group 4: Monitoring Methodology - The price monitoring includes data from over 2000 wholesalers, agents, and distributors across more than 300 trading markets in 31 provinces [7]. - The methodology involves various data collection techniques, including on-site price collection and electronic inquiries [8].

| 产品名称 | 单位 | 本期价格 | 比上期 价格涨跌 | 涨跌幅 | | --- | --- | --- | --- | --- | | | | （元） | | (%) | | | | | （元） | | | 一、黑色金属 | | | | | | 螺纹钢（Φ20mm，HRB400E） | 吨 | 3193.3 | 27.5 | 0.9 | | 线材（Φ8—10mm，HPB300） | 吨 | 3358.3 | 33.3 | 1.0 | | 普通中板（20mm，Q235） | 吨 | 3548.8 | 17.5 | 0.5 | | 热轧普通板卷（4.75—11.5mm，Q235） | 吨 | 3310.2 | 3.0 | 0.1 | | 无缝钢管（219*6，20#） | 吨 | 4143.6 | -12.0 | -0.3 | | 角钢（5#） | 吨 | 3503.7 | -18.3 | -0.5 | | 二、有色金属 | | | | | | 电解铜（1#） | 吨 | 77680.7 | 1826.5 | 2.4 | | 铝锭（A00） | 吨 | 19952.9 | 234.6 | 1.2 | | ...