Bridging Resources and Capital for a Sustainable Future.

Bridging Trusted Refineries and Global Markets

From sourcing and inspection to blind shipping and documentation — Marsole handles every step so you can focus on profitable trade.

an aerial view of a quarry with a blue pool
an aerial view of a quarry with a blue pool
Our Core Refined Minerals Portfolio
representing Marsole’s main export focus across energy, electronics, and advanced materials.

Ta₂O₅ (Tantalum Pentoxide)

High-purity tantalum pentoxide (99.5–99.99%) suitable for capacitor, semiconductor, and optical applications.
Every batch is supplied with COA (Certificate of Analysis), 3TG-compliant CMRT documentation, and impurity mapping report (Fe, Na, K ppm levels).
Pilot or sample orders (from 50 kg) are available for laboratory qualification prior to recurring CIF or DAP shipments.

Nb₂O₅ (Niobium Pentoxide)

Electronic- and optical-grade niobium pentoxide refined to 99.5–99.99% purity.
Provided with COA, CMRT (Conflict-Minerals Reporting Template), and moisture/alkali impurity profile.
Sample lots from 100 kg can be arranged for material testing or customer qualification.

NdPr Oxide (Neodymium-Praseodymium Mixed Oxide)

Rare-earth oxide used in high-performance permanent magnets and catalytic formulations.
Delivered with COA, REE composition certificate, and End-Use Verification Letter when required under export compliance.
Initial pilot quantities (25–100 kg) can be shipped under CIP or CIF terms for magnet-grade testing.

LiF (Lithium Fluoride)

Battery-grade LiF (≥99%) manufactured under controlled fluoride process. Classified as Dangerous Goods – UN 3288, Class 6.1.
Each shipment includes COA, SDS (Safety Data Sheet), DGD (Dangerous Goods Declaration), and packing photos.
Sample orders (1 bag = 25 kg) are accepted for cathode or flux evaluation, handled internally through our DG-certified logistics chain.

ZrO₂ (Zirconium Dioxide)

≥99.5 % zirconia powder for ceramics, dental, and YSZ applications.
Supplied with COA, particle-size distribution (PSD) chart, and BET surface-area report for consistency verification.
Sample orders from 50–100 kg can be provided with sealed 25 kg drum packaging for evaluation.

B₄C (Boron Carbide)

Industrial-grade and high-purity B₄C powder (98–99 % +), used in armor, abrasives, and neutron-shielding.
Comes with COA, hardness report (Knoop), and PSD data.
Pilot quantities (100–200 kg) available for ballistic or abrasive test runs before bulk order.

V₂O₅ (Vanadium Pentoxide)

≥98 % vanadium pentoxide flakes or powder for catalyst, alloy, and VRFB electrolyte applications.
Each lot includes COA, impurity certificate (Fe, Na, Si limits), and moisture content report.
Sample supply (50–200 kg) possible for catalytic pilot or battery electrolyte validation.

Common to All 7-Series Products

Each shipment of the 7-Series refined minerals is supplied with a complete documentation package and strict quality assurance certification to guarantee product integrity and traceability.

Included Documents: COA, SDS, Packing List, Certificate of Origin, and applicable compliance certificates (CMRT, DGD, or End-Use Letter).

All materials undergo full QC inspection before dispatch, ensuring consistent purity, particle uniformity, and reliable export-grade packaging.