Aluminium ingots purchase, CIF Vietnam

I am buying aluminum ingot A7 (99.99-99.97%).
Destination: Cat Lai Port, HCMC, Vietnam.
Trial order: 5,000 MT.
Annual contract: 100,000 MT/month * 12 months = 1,205,000 MT total.
Packaging: palletized with aluminum bands.
Price (CIF): USD $1,820/MT
Payment terms:  
- DLC MT700: Non-cancellable, Confirmed, Irrevocable, Non-transferable  
- Payment released via TT/MT103 at Destination Port (within 7–10 working days)  - 2% Performance Bond from Seller's Bank ? Inspection: SGS (Pre-shipment) ?
Looking forward to your offers with photos of aluminium ingots.