As of Apr 30, the SMM domestic market high-purity quartz sand (for the inner layer of quartz crucible) is quoted at 170,000-230,000 yuan/ton, with an average price of 200,000 yuan/ton, and the price has fallen; high-purity quartz sand (for the middle layer of quartz crucible) is quoted at 100,000-130,000 yuan/ton, with an average price of 115,000 yuan/ton, and the price has fallen; high-purity quartz sand (for the outer layer of quartz crucible) is quoted at 24,000-80,000 yuan/ton, with an average price of 52,000 yuan/ton, and the price is temporarily stable.