Lithium
A critical material in battery manufacture and energy storage, traded both as mineral concentrate and as refined chemicals.
Enquiries commonly concern
- Spodumene concentrate
- Lithium carbonate
- Lithium hydroxide
Metals and minerals
Broking for battery materials, chrome ore and precious metals, where grade, assay and provenance are central to every discussion.

Metals and minerals are priced and traded according to their grade, and that grade must be demonstrated, usually through independent sampling and assay. For precious metals, documented provenance is just as important.
ESN London Ltd approaches these enquiries with that in mind. We establish the material, its form and grade, the quantity and the documentation available before discussing any next steps.
A critical material in battery manufacture and energy storage, traded both as mineral concentrate and as refined chemicals.
Enquiries commonly concern
Chrome ore and concentrates, used principally to produce ferrochrome for stainless steel.
Enquiries commonly concern
A precious metal used in automotive catalysts, industrial processes, jewellery and investment.
Enquiries commonly concern
Benefits
Conversations are built around the grade and assay the material must meet, from the very first call.
Origin and chain-of-custody documentation are treated as essential, not as an afterthought.
Parties are expected to provide company information before introductions, which protects everyone involved.
Commercially sensitive information is handled discreetly throughout the discussion.
How it works
Verification runs through every stage of these discussions.
We confirm the material, its form and the grade or assay required, along with quantity and timing.
Origin and provenance documentation are discussed at the outset, particularly for precious metals.
All parties should expect thorough verification of company information before any introduction is made.
Terms, sampling and assay arrangements are discussed between the parties, and the next steps are confirmed clearly.

Good to know
Mineral concentrates are usually priced on grade, confirmed through independent sampling and assay at an agreed point. Differences between assay results are typically resolved through procedures set out in the contract.
Precious metals require particularly careful attention to provenance and chain of custody. Buyers and sellers should expect detailed checks on the parties, the material and its origin before any transaction proceeds.
FAQs
More general questions are answered on our FAQs page.
Enquiries commonly concern spodumene concentrate and refined lithium chemicals such as lithium carbonate and lithium hydroxide. Please call to discuss your specification.
Grade is usually confirmed by independent sampling and laboratory assay. The contract normally sets out where sampling takes place and how any differences in results are resolved.
It is the proportion of chromium oxide in the ore and is the main measure of its grade. Higher Cr₂O₃ content generally indicates a higher-value ore.
Platinum transactions require clear evidence of origin and chain of custody, along with full company information for every party. We discuss the specific requirements when you enquire.
Contact
Have a question or a requirement to discuss? Contact ESN London Ltd directly.