High-Purity Industrial Minerals·24+ yrs in the trade·Korea · Japan · KSA · Gulf · Africa

Earth's purest,
refined for trade.

Sterlingport Global is a UK trading house in lab-verified silica quartz and graded mica. We source at origin in South Asia and Africa, process to specification, and ship against bankable paperwork to buyers in Korea, Japan, China, the Gulf and Saudi Arabia.

Request a quotation → Explore silica quartz →

99.99%

SiO₂ purity

1,000 MT/mo

Own-source

24 yrs

Founder experience

Co. 17219260

Flagship product·Silica Quartz

High-purity silica quartz. Refined to a spec, not a story.

Crystalline (vein) quartz across the full purity spectrum: lumps for fused-silica, chips for ceramics, sand & grit for glass, photovoltaic, semiconductor and refractory applications.

Raw silica quartz chunk in hand, flagship product

Vein quartz · in hand

01 · Silica Quartz

99.99% & 99.96% SiO₂. Two grades, one discipline.

Semiconductor, solar (PV), optical glass, ceramics, refractory. Both construction-grade and tech-grade flows are available. Every bag is lab-tested before it is sealed.

Purity

99.99% · 99.96%

Lumps

50–200 mm

Chips / sand

1–10 mm · <1 mm

Full specification → Request a sample →

Active operation

On the ground in Sri Lanka. Own-source, on the spec.

Open-cast bench mining at the family-held quartz operation in the central highlands. Mechanised extraction, supervised quality control, ready for bagging and export.

Active operational silica quartz quarry, central Sri Lanka

Mechanised quartz extraction · Sri Lanka

Quartz boulder pile with workers at the family operation

Raw lumps · graded at source

White silica quartz stockpile at the family operation

Stockpile · awaiting screening

Worker in safety gear at the quartz extraction face

Supervised QC · PPE on site

CAT excavator at the quartz extraction face

CAT extraction · bench mining

Method

Open-cast bench mining

Capacity

1,000 MT / month own-source

Origin

Sri Lanka highlands

Active export

From factory floor to port.

Jumbo-bag packing at the Sri Lankan factory, container loading, sealed and document-ready for buyers in Korea, Japan, China, the Gulf and KSA.

Forklift loading labelled jumbo bags into a shipping container at the Sri Lankan factory

Jumbo bags · forklift loading · factory floor

Container interior with stacked jumbo bags, strapped and ready for sealing

Sealed for export · Korea · Japan · China · KSA · Gulf

Sterlingport team on a Saudi Arabian silica quartz exploration site

Saudi Arabia next

Saudi Arabia exploration underway.

Site work is underway on the Kingdom's silica quartz deposits with our Saudi partners. First-shipment timing is still being worked out. Buyers asking for an early allocation should write in now.

Stage

Exploration · partner-led

Origin

Kingdom of Saudi Arabia

02 · Mica

Mica

Sheet & processed mica · Nigeria origin · honey, white & specialty grades for insulation, coatings and industrial use.

View mica spec →

Roster·Available on enquiry

Beyond silica & mica

Where the supplier network can deliver to spec, we also broker:

· Kaolin
· Feldspar
· Tourmaline & agate
· Lithium ore
· Beryllium / monazite
· Copper · zinc · lead

Origin, volume & INCOTERMS on enquiry

Portrait of Mr. M. S. M. Kamil, Co-Founder and Director, Sterlingport Global

M. S. M. Kamil · Co-Founder & Director

Leadership

Two decades on the desk, and on the ground.

Mr. M. S. M. Kamil is the Co-Founder and Director of Sterlingport Global. He has over 24 years in silica quartz mining, processing and exports. His career started with a senior role at a Sri Lankan state mineral enterprise. He went on to found a private quartz mining company that sent its first shipments to Korea. Today he is Director of Operations for an industrial-mineral processor shipping quartz, kaolin and feldspar to Japan and Korea.

M. S. M. Kamil

Read the founder's story →

Heritage

Our history runs deeper than the deposit.

A family business with Sri Lankan origins. Two decades of silica quartz, kaolin and feldspar exports across state-enterprise and founder-led ventures. Now formalised in the United Kingdom and run by the next generation.

Korean buyer visiting the family quartz site in Sri Lanka

Korean buyer visiting the family site · Sri Lanka

Korean buyer signing an off-take agreement in a Sri Lankan home

Korean off-take signing · Sri Lanka

Vintage quarry, workers and processing camp

Family quartz site · from the archive

Read the full story →

Process

Four steps, no surprises.

From the buyer's first enquiry to a paid, papered, delivered cargo, this is how a Sterlingport shipment moves.

i · Enquiry

Specification & volume

Grade, particle size, monthly volume, port of discharge, target INCOTERM.

ii · Sourcing

Origin allocation

Allocate from own-source and partner stockpiles, sample and lab-verify.

iii · Quotation

Bankable terms

Price, INCOTERMS, payment instrument (LC / TT), shipment window in writing.

iv · Shipment

Papered & shipped

COA, PSI where agreed, jumbo-bag packing, BL. Your cargo clears.

Enquire

Let's discuss your requirement.

Send us specification, monthly volume and port of discharge. We come back with origin, grade and INCOTERMS, usually within one working day.

Open the contact page → Email Mr. Kamil →

Earth's purest,refined for trade.