China's spot market dynamics: The average price of 20mm grade 3 seismic rebar in 31 major cities across the country is $538.38/ton, a decrease of $1.53/ton from the previous trading day; the Shanghai rebar dollar price index closed at $522.71, down 0.89%. Specifically, yesterday's rebar futures fluctuated weakly, and the market quotations loosened accordingly, but the transactions were average. For transactions, the transaction volume continued to decrease compared with yesterday, and the transaction volume hit a new low in the near future. It generally expects that the price of the national building materials market will be weak today.