Timothy Nuy
Director
Founder of Rostra Holdings (Singapore) specialising in fintech, gold, and natural resources. Former CEO of MyBucks S.A. (Luxembourg) and Investment Director at ADC African Development Corporation AG.
About Sigma
Premier destination for
precious metals trading
Established in Dubai in 2024 to offer investors worldwide a trading partner defined by dependability and transparency.
Who we are
Trust, precisely executed
Sigma Precious Metals serves a select base of institutional, sovereign, and private capital. We provide discreet access to investment-grade metals, delivered with absolute precision and reliability.
Our operations are governed by rigorous standards at every stage — from onboarding to final settlement — with ESG principles fully integrated throughout.
Leadership
The team behind Sigma
Behind our two senior principals is a capable and highly motivated team that punches well above its weight — combining deep industry knowledge with the drive of a young, hungry organisation.
Mohamed Fouad
General Manager
15+ years in the Dubai gold industry. As founder and owner of a precious metals trading enterprise, has built a proven track record of sustained commercial success. Expert in gold refining, trading, market analysis, and corporate finance controls.
Our teams
A lean, high-performance organisation
Dealing desk
Monitors live market conditions across all major trading sessions. Executes spot, forward, and hedging transactions with speed and accuracy.
Operations
Ensures every agreed transaction is executed cleanly — trade confirmation, documentation, vault coordination, and settlement.
Logistics
End-to-end movement of physical bullion. Export documentation, customs clearance, and last-mile delivery at client's designated location.
Accounts
Invoicing, settlement tracking, reconciliation, and financial reporting with the precision that high-value trading demands.
Compliance
Manages all KYC and AML obligations, counterparty due diligence, sanctions screening, and DMCC regulatory requirements.
Client relations
Dedicated point of contact for every client, ensuring responsive communication and tailored service from first enquiry onwards.
Global presence
One hub, four regions
Dubai sits between the world's producers and its financial centres. Our network reaches outward from there.
Middle East
HQ and strategic trade crossroads — DMCC licensed, JLT Cluster-C
Europe + Asia
Refineries and assay certification networks
Africa
Producer relationships and responsible sourcing at origin
Americas
Institutional connectivity and vault hubs
Ready to partner with Sigma?
Speak with our team about your precious metals needs — trading, logistics, financing, or storage.