Ghi chú : lanthanum (La), dysprosium (Dy), cerium (Ce), neodymium (Nd), praseodymium (Pr), terbium (Tb), europium (Eu),ytterbium (Yb),samarium (Sm)

1 USD =6,403 NDT

Nguồn: VITIC/Reuters

Nguồn: Vinanet