Because SMIC is a 14-nanometer process chip, the price will be relatively cheap.
First of all, SMIC is not selling chips, SMIC is foundry chips for chip design companies, chips are not SMIC's own, just collect foundry fees. Moreover, SMIC's current mass production chip is 14 nm, which is naturally much cheaper than the high-end process chip of 5 nm and 4 nm.