Aluminium ingots ADC12 order to Indonesia

We are looking for a long term reliable secondary aluminium supplier from Malaysia to meet our aluminium ingot volume needs for our factory operation in Jakarta, Indonesia. Specifically, we are looking for aluminium ingot ADC12.
On a regular basis, we would like to order 1000 MT for each month for ADC12, but we would like to start with a trial order first before increasing the volume.
Please let us know if you are interested in a long term business relationship and what would be the next steps to proceed with the order.