Group 1 - The core issue involves administrative regulatory measures taken against Xiamen Jiucheng Enterprise Management Partnership for violating share reduction regulations related to Zhongjie Oil and Gas [1][3] - Xiamen Jiucheng reduced its holdings in Zhongjie Oil and Gas by selling 5.98 million shares, decreasing its ownership from 7.03% to 6.89%, which occurred within 15 trading days of the disclosure of the reduction plan, violating management regulations [3] - The regulatory decision mandates that Xiamen Jiucheng must repurchase the shares it improperly reduced within one month of receiving the decision and pay the price difference to Zhongjie Oil and Gas, while also enhancing its understanding of securities laws [3] Group 2 - Zhongjie Oil and Gas reported a 19.94% year-on-year decline in main revenue for the first three quarters of 2025, totaling 1.537 billion yuan, with a net profit attributable to shareholders of 83.08 million yuan, down 46.61% year-on-year [4] - In Q3 2025, Zhongjie Oil and Gas recorded a main revenue of 481 million yuan, a decrease of 18.45% year-on-year, and a net profit attributable to shareholders of 33.31 million yuan, down 28.39% year-on-year [4] - The company's non-recurring net profit for Q3 2025 was 46.75 million yuan, reflecting a 13.57% decline compared to the same quarter last year [4]