黄河旋风公告称，拟与关联方芯创新材签署《变电站用电协议》。芯创新材投资约4745万元建设的 110kV绿钻变电站已投产运营。目前园区年用电量约7000万度，电费约5250万元；扩充产能项目运营 后，年用电量预计提至12000万度，电费约9000万元。服务费依据用电量分阶段递减，累计达投资本金 后按不同标准收取。该关联交易议案经董事会等会议通过，关联董事回避表决，尚需股东会审议。 ...

Group 1 - The superhard materials index increased by 2% during intraday trading [1] - Among the constituent stocks, Huanghe Xuanfeng rose by 7.43% [1] - Yujing Co., Ltd. saw an increase of 6.63% [1] - Sifangda experienced a rise of 3.29% [1] - Huifeng Diamond increased by 2.44% [1] - Power Diamond rose by 2.31% [1]

Core Viewpoint - The cultivated diamond and superhard materials sector experienced a significant intraday surge, with Huanghe Xuanfeng hitting the daily limit, Sifangda rising over 5%, and Huifeng Diamond, Power Diamond, and Chujing New Materials also showing upward trends [1] Company Performance - Huanghe Xuanfeng reached the daily limit, indicating strong investor interest and confidence in the company's stock performance [1] - Sifangda saw an increase of over 5%, reflecting positive market sentiment towards its business prospects [1] - Other companies in the sector, including Huifeng Diamond, Power Diamond, and Chujing New Materials, also experienced gains, suggesting a broader rally in the cultivated diamond and superhard materials market [1]

Group 1 - The Cultivated Diamond Index increased by 2% during intraday trading on December 30 [1] - Wald rose over 6%, while Sifangda, Power Diamond, and Zhongbing Hongjian each increased by over 1% [1] - Huanghe Xuanfeng experienced a slight increase [1]

Group 1 - The superhard materials index increased by 2% during intraday trading [1] - Among the constituent stocks, Sifangda rose over 7% [1] - World gained 4.12%, Huifeng Diamond increased by 3.86%, Guoji Precision Engineering rose by 3.30%, and Huanghe Xuanfeng went up by 3.05% [1]

Investment Rating - The report maintains an "Overweight" rating for the non-ferrous metals sector [1] Core Views - The non-ferrous metals sector saw a weekly increase of 1.46%, ranking in the upper middle among all primary industries. The energy metals sector rose by 5.08%, while the precious metals sector increased by 0.68% [1][14] - Gold prices have broken through the consolidation range, while silver's bullish sentiment has peaked, indicating a potential risk of a sharp short-term correction [1][49][50] Summary by Sections Market Review - The Shanghai Composite Index rose by 0.33%, with the non-ferrous metals sector outperforming the index by 1.44 percentage points [14] - The report highlights the performance of various sub-sectors, with energy metals leading the gains [14] Industrial Metals - **Copper**: Prices fluctuated with LME copper at $11,882 per ton (up 2.85%) and SHFE copper at ¥93,180 per ton (down 0.96%). Supply remains weak, with a forecasted global copper shortage of 150,000 tons by 2026. Demand is deteriorating as construction projects pause, leading to increased spot market discounts [2][30] - **Aluminum**: LME aluminum rose to $2,945 per ton (up 2.43%), while SHFE aluminum was at ¥22,185 per ton (up 0.07%). Supply conditions are stable, with new capacity coming online, but demand remains cautious due to a downturn in the real estate sector [3][35] - **Zinc**: Prices fell, with LME zinc at $3,073 per ton (down 2.12%) and SHFE zinc at ¥23,065 per ton (down 2.29%). Inventory levels showed mixed trends [41] - **Tin**: Prices increased, with LME tin at $43,227 per ton (up 5.11%) and SHFE tin at ¥343,040 per ton (up 3.02%). Supply from Indonesia has increased, but demand remains cautious [46] Precious Metals - **Gold**: COMEX gold closed at $4,368.70 per ounce (up 0.90%), while SHFE gold was at ¥979.90 per gram (up 0.95%). Economic data from the U.S. showed mixed results, but overall inflation appears to be cooling, which may influence future gold prices positively [4][49] - **Silver**: The report warns of extreme bullish sentiment in silver, with potential for a sharp correction as market volatility peaks [50]

Core Viewpoint - The company, Huanghe Xuanfeng, is committed to strengthening its core business and expanding production capacity while focusing on research and development of diamond materials in various applications such as semiconductors, nanomaterials, and functional materials [1] Group 1: Business Strategy - The company aims to leverage its advantages in scale and technology to enhance its core business in superhard materials [1] - The focus will be on breakthroughs in synthetic diamond materials, precision grading and sorting technology, and high-end applications of diamonds [1] Group 2: Research and Development - The company plans to establish a complete production chain for carbon-based materials, emphasizing research in the third-generation semiconductor industry centered around diamond applications [1] - The goal is to expand the application of carbon-based materials in telecommunications, medical, optoelectronic materials, and semiconductors [1]

证券日报网讯12月19日，黄河旋风（600172）在互动平台回答投资者提问时表示，公司严格按照信息披 露相关规则履行披露义务，后续如有相关计划，将根据相关法律法规及时履行信息披露义务。 ...

Core Viewpoint - The deep earth economy sector experienced a decline of 2.78% on December 16, with Huanghe Xuanfeng leading the drop [1] Group 1: Market Performance - The Shanghai Composite Index closed at 3824.81, down 1.11% [1] - The Shenzhen Component Index closed at 12914.67, down 1.51% [1] Group 2: Capital Flow - The deep earth economy sector saw a net outflow of 492 million yuan from main funds, while retail investors contributed a net inflow of 445 million yuan [1] - Speculative funds recorded a net inflow of 46.84 million yuan [1]

Group 1 - The cultivated diamond sector is experiencing a downturn, with companies such as Sifangda and Chaohongji seeing declines of over 5% [1] - Other companies like World and Huanghe Xuanfeng are also following the downward trend [1]