Yes Under normal circumstances, the raw material procurement of conch is carried out through internal bidding. Internal bidding refers to the selection of suppliers within the company through open competition in order to achieve the purpose of fairness, justice and openness. Conch, as a large cement production enterprise, needs a lot of money and resources for its raw material procurement. Therefore, the use of internal bidding can ensure the transparency and fairness of the procurement process, at the same time, it can save procurement costs for enterprises and improve procurement efficiency.