Buying copper cathodes, 100 mt trial, 300 mt monthly

Our trading company, based in Central Europe, is currently searching for new suppliers of copper cathodes. We are looking for partners for a 5-10 year supply contract.
Our basic requirements:
- LME Standards BS EN 1978:1998-Cu-CATH-1 (minimum Cu 99,97-99,99%)
- Molding certificate ( enclosed with the sample)
- SGS verified stamp (only with standard loading of the entire container)
Ideally if you have a product data sheet for the cathode with all the properties, so we can see that it meets our standards
If everything is according to these requirements we would order a trial batch of 100MT, if there is no problem we would be happy to sign with you a 60 month contract for 300MT of copper cathodes per month.
Looking forward to your offers.