On October 23, the Gaoyao Branch of the Natural Resources Bureau of Zhaoqing City, Guangdong Province, published the appraisal report on the proceeds from the transfer of mining rights for the granite quarry in Tanggou Mining Area, Huaduo Town, Gaoyao District. The total reserves of this mine amount to 42.1115 million cubic meters (including granite for construction and reusable overburden materials). The annual production capacity of granite for construction is 1.3 million cubic meters, and the appraised value exceeds 200 million yuan.

　　The mining area is located 185° southeast of the urban center of Gaoyao District, at a straight-line distance of approximately 28 kilometers from the urban center. Administratively, it falls under the jurisdiction of Huaduo Town in Gaoyao District and is situated in the southeastern part of Huaduo Town, about 9 kilometers away in a straight line. Two kilometers to the north of the mining area, there is a connection to Provincial Road S273. Traveling along Provincial Road S273 for roughly 22 kilometers to the north will lead to National Highway G324, providing access to the urban center of Gaoyao District and the wharf on the southern bank of the Xijiang River. Thus, land transportation to and from the mining area remains relatively convenient.

　　The mining rights hold reserves of 27.8216 million cubic meters of granite suitable for construction purposes, along with 14.2899 million cubic meters of overburden that can be comprehensively utilized. The assessed calculation period is 18.83 years (including a one-year infrastructure construction period). The annual production capacity for construction-grade granite is 1.3 million cubic meters, while the annual production capacity for the comprehensive utilization of overburden is 749,600 cubic meters (of which 346,600 cubic meters come from highly weathered granite layers, 324,500 cubic meters from moderately weathered granite layers, and 78,500 cubic meters from residual slope deposits).

　　According to the assessment report, the product mix includes granite crushed stone for construction purposes, manufactured sand, washed sand (from highly weathered rock layers), tailings for backfilling, block stones for backfilling (from moderately weathered rock layers), and loose fill material (from residual slope deposits). The tax-free sales prices (per cubic meter) are as follows: granite crushed stone for construction—63 yuan/cubic meter; manufactured sand—63 yuan/cubic meter; washed sand—60 yuan/cubic meter; block stones for backfilling—17 yuan/cubic meter; tailings for backfilling—6 yuan/cubic meter; and loose fill material (utilizing residual slope deposits in an integrated manner)—6 yuan/cubic meter. The total unit cost is 81.42 yuan/cubic meter, while the unit operating cost is 70.5 yuan/cubic meter.