Jin Rong Jie·2025-07-17 09:07Group 1 - The core viewpoint of the news is that the China Hong Kong 300 upstream index has shown positive performance, with a 0.94% increase over the past month, an 18.02% increase over the past three months, and a 12.03% increase year-to-date [1] - The China Hong Kong 300 upstream index is composed of securities selected based on the China Securities Industry Classification, reflecting the overall performance of various thematic securities listed on the Hong Kong Stock Exchange [1] - The index has a base date of December 31, 2004, with a base point of 1000.0 [1] Group 2 - The top ten holdings of the China Hong Kong 300 upstream index include China National Offshore Oil Corporation (28.76%), PetroChina Company Limited (13.17%), Zijin Mining Group (10.73%), China Shenhua Energy Company (9.47%), Sinopec Limited (9.06%), China Hongqiao Group (4.45%), China Coal Energy Company (3.29%), Zhaojin Mining Industry Company (3.19%), Luoyang Molybdenum Company (2.74%), and Yanzhou Coal Mining Company (2.33%) [1] - The index's holdings are entirely composed of securities listed on the Hong Kong Stock Exchange, with a 100% allocation [1] Group 3 - In terms of industry composition, the China Hong Kong 300 upstream index has a significant allocation to oil and gas at 51.38%, followed by precious metals at 15.91%, coal at 15.56%, and industrial metals at 14.64% [2] - The index samples are adjusted semi-annually, with adjustments occurring on the next trading day after the second Friday of June and December each year [2] - Special circumstances may lead to temporary adjustments to the index, such as delisting of sample companies or corporate actions like mergers and acquisitions [2]