The ministry said most cities and provinces regularly publish building material prices and construction cost indices, but some have failed to keep pace with market movements. In some areas, construction cost indices had only been updated through the fourth quarter of 2025, while the published prices of materials such as sand and stone no longer reflected market conditions.
The ministry warned that inaccurate or delayed price announcements could affect the cost, progress and efficiency of major infrastructure projects as the government accelerates public investment.
It urged local authorities to monitor the prices of key materials, including steel, cement, sand, stone and asphalt, and crack down on hoarding and price manipulation
The ministry also noted that diesel prices fell in June, saying local authorities should review published material prices accordingly and avoid keeping them artificially high.