Group 1 - The A-share market saw significant gains with Linggang Co., Ltd. rising by 6.52% and Jinling Mining increasing by 5.62% [1] Group 2 - Dalian Commodity Exchange's iron ore futures for the near-month contract broke the historical threshold of 1000 yuan/ton, reaching a peak of 1000.5 yuan/ton [2] - The exchange implemented measures to cool down the iron ore futures market, limiting non-futures company members or clients to a maximum daily opening position of 5000 lots for the I2105 contract starting December 14 [2] - This marks the fourth intervention by the exchange in the past seven days, reflecting the regulatory body's commitment to the stable development of the commodity [2] - According to Yong'an Futures' research report, the recent alleviation of supply pressures and stable demand, coupled with steel mills' need to replenish stocks at year-end, have contributed to the upward price movement of iron ore [2]