Indonesia has launched monthly benchmark prices for key base and precious metals, including copper, iron, manganese, lead, zinc and titanium.

The prices are published in the website of the Ministry of trade, and will be adjusted based on the highest average price from international or domestic platform.

The current price will be used to determine the export tax, which is valid from March 1 to 31.

In addition, Indonesian government implements a progressive tariff system to concentrate this year, and the tax rate is at 20% -25% this year, which will be up to 60% by the second half of 2016.