About Semaphore

A trading house built on trust, capacity and reach.

Founded in 2025, Semaphore Minerals Limited is a commodities trading company with a focused mandate — move Africa's mineral wealth to the markets that need it, efficiently and without the bottlenecks that typify the sector.

From our Lusaka headquarters and Seoul office, we operate across two complementary tiers: industrial copper cathode from the Central African Copperbelt, and precious gemstones from Zambia's world-renowned deposits. Our capability spans sourcing from verified mines in the DRC and Zambia, logistics through the Dar-es-Salaam corridor, and fulfillment to Asian and European buyers.

We believe the commodities market rewards reliability above all. Our promise is delivery — on specification, on schedule, on principle.

20,000MT
Annual Cu Capacity
2wks
Shipping to Asia
2
Sourcing Countries
2025
Year Founded
Our Offering

Two tiers. One commitment.

Semaphore operates across two distinct product lines — each backed by the same standards of sourcing integrity, logistics reliability, and commercial discipline.

Tier 01 Cu · 99.99% Cathode · LME Grade A
Industrial Minerals

Copper Cathode

LME Grade A copper cathode sourced from verified mines across the Central African Copperbelt. Full supply chain from production to Dar-es-Salaam port, with established corridors into Asian industrial markets.

Origin DRC & Zambia
Capacity 20,000 MT p.a.
Grade 99.99% Cu
View copper operations arrow_forward
Tier 02 Aquamarine · Emerald · Rough & Cut
Precious Gemstones

Aquamarine & Emerald

Rough aquamarine sourced from licensed Zambian dealers, with cut aquamarine and emerald supplied to collectors and trade buyers. Every stone is ethically sourced, documented, and export-ready.

Origin Zambia
Formats Rough & Cut
Markets UK · Asia
View gemstone collection arrow_forward
Tier 01 · Copper Operations

From the Copperbelt, reliably.

LME Grade A copper cathode, sourced from verified mines in Zambia and the DRC. Full logistics chain through Dar-es-Salaam.

Product
Electrolytic Copper Cathode LME Grade A · minimum 99.99% Cu
Origin
DRC & Zambia Verified mines with full provenance documentation
Capacity
20,000 MT per annum Scalable against long-term offtake agreements
Delivery
Dar-es-Salaam, Tanzania Onward shipping to Asian ports · ~2 weeks transit
Pricing
LME reference + premium Flexible commercial terms for qualifying buyers
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Verified Sourcing

Direct relationships with licensed producers across the Copperbelt, with full chain-of-custody documentation.

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End-to-End Logistics

Bonded haulage from mine gate through the Dar corridor, with customs and port handling managed in-house.

verified

Independent Assay

SGS or equivalent third-party quality certification on every lot — no deviation, no dispute.

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Commercial Flexibility

LC, TT, and structured payment terms available — tailored to qualified counterparties.

Tier 02 · Precious Gemstones

From Zambian earth, to the world's collections.

Zambia is one of the world's most significant sources of fine gemstone rough — home to premium emerald deposits and some of Africa's finest aquamarine. We supply both raw crystal and precision-cut stones.

Rough · Crystal

Rough Aquamarine

Naturally formed hexagonal crystal columns in characteristic sea-blue hue. Sourced from licensed Zambian dealers with full export documentation.

Species Beryl
Hardness 7.5–8 Mohs
Format Per parcel
Cut · Faceted

Cut Aquamarine

Precision-cut emerald and step-cut stones showcasing the mineral's characteristic clarity and cool, sea-water tone. Available in collector and trade grades.

Cuts Emerald, Oval, Cushion
Clarity VVS–VS
Sizing 1–20+ carats
Cut · Faceted

Zambian Emerald

Zambia is the world's second-largest emerald producer — prized for the distinctive bluish-green hue and exceptional saturation of its stones. Available cut and certified.

Species Beryl (Cr/V)
Origin Kafubu Belt
Treatment Disclosed

Every stone we supply carries full provenance documentation and export clearance. We work exclusively with licensed Zambian dealers and vetted lapidaries — because in this trade, the story of a stone matters as much as the stone itself.

Our Values

The principles that hold it all together.

01 / Integrity

Integrity

Transparent dealings, clean paperwork, and zero tolerance for the shortcuts that compromise long-term relationships.

02 / Reliability

Reliability

Our word is our contract. We deliver to specification, on schedule, every shipment — because that's the only thing that matters.

03 / Innovation

Innovation

We continuously sharpen our logistics, commercial structures, and market intelligence to move faster and leaner than the old guard.

04 / Sustainability

Sustainability

Responsible sourcing is non-negotiable. We work with producers whose practices we can defend — environmentally and socially.

05 / Partnership

Partnership

We build long-term relationships with suppliers, clients, and the communities that host the mines we trade from.

06 / Excellence

Excellence

From assay certificates to the cut of a gemstone, we refuse to compromise on the details that distinguish our work.

Our Vision

To become the most trusted and efficient bridge between Africa's mineral wealth and global markets — setting new standards in commodities trading through innovation, integrity, and sustainable practices.

Semaphore Minerals Limited
Sustainability

Responsible sourcing, without exception.

Our license to operate depends on the communities and ecosystems we work within. We take that seriously across every lot we ship.

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Environmental Stewardship

Working exclusively with mines that adhere to international environmental standards and responsible extraction practices.

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Community Development

Supporting the Zambian and DRC communities that host our supply base through education, healthcare, and infrastructure.

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Ethical Sourcing

Zero tolerance for conflict minerals. Every supplier is vetted; every lot carries full chain-of-custody documentation.

recycling

Circular Economy

Promoting the responsible use of minerals — from copper in the energy transition to gemstones in the heritage trade.

visibility

Transparency

Regular reporting and third-party audits underpin our accountability to clients, regulators, and partner communities.

co2

Carbon Reduction

Targeting carbon-neutral operations by 2030 through logistics optimization and renewable energy partnerships.

Get in touch

Let's build something together.

Whether you're sourcing industrial copper or acquiring fine gemstones, our team is ready to discuss terms.

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Headquarters

Cisaka Close, Avondale
Lusaka, Zambia

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Asia Office

70 Banpo-daero 39-gil
Seocho-gu, Seoul
South Korea

call

Telephone

+260 972 030 871
+260 771 649 965

mail

Email

info@semaphoreminerals.com