Ultrafine copper powder 99,9999 purchase, 6N grade

We are interested in purchasing ultrafine copper powder with a purity of 99.9999% (6N grade).
We would liek to get a detailed commercial offer for an initial order of 1,000 kg, with the possibility of establishing a long-term supply agreement subject to successful verification of quality and documentation.
Before proceeding with any purchase commitment, kindly provide the following information and supporting documents for our technical, legal, and compliance review:
1. Product Information
Detailed Technical Data Sheet (TDS)
Certificate of Analysis (COA) for the current production batch
Material Safety Data Sheet (MSDS/SDS)
Product specification sheet
Particle size distribution report (PSD)
Average particle size (D10, D5)