The dollar edged lower against a basket of currencies on Tuesday, as investors awaited speeches by Federal Reserve officials for signs on whether the central bank will stick to its guns and raise rates this year. SEE MORE It has been a quiet start on the London Metal Exchange this morning, Wednesday June 21, as base metals prices remain little changed with price movements ranged between down 0.3% for tin and up 0.2% for zinc – copper prices are down 0.2% at $5,657 per tonne. Volume has been light with 4,009 lots traded as of 06:22 BST. SEE MORE The Chinese domestic price of iron ore concentrates rose moderately by Yuan 10/dry mt in the week to Friday, with Chinese steel mills preferring the domestically produced higher grade 64-66% concentrates for steelmaking when they enjoy high sales margins, market sources said Friday. SEE MORE Although Viet Nam is the world’s third largest exporter of natural rubber, businesses still have to import rubber raw material to meet the demand for production and processing. SEE MORE