Hưng Yên has 72 sand mines, including 50 river ones with an estimated reserve of 64.75 million cu.m and 22 coastal ones with around 75 million cu.m.
Hưng Yên has 72 sand mines, including 50 river ones with an estimated reserve of 64.75 million cu.m and 22 coastal ones with around 75 million cu.m.