Published: July 23, 2026 · Updated: August 17, 2026
High-purity silver in every form you need — LBMA Good Delivery silver bars, 99.99% silver grains, and 99.9% silver powder. Every product ships with third-party assay certification, serialized documentation, and full export compliance from our Hong Kong hub.

Our LBMA Good Delivery silver bars are the cornerstone of institutional and wholesale silver supply. Each 15kg bar (approximately 482 troy oz) is produced to London Bullion Market Association Good Delivery specifications and individually serialized for full traceability. We also supply 1kg, 100oz, and 10oz investment bars for wholesale distribution and private portfolios. Purity is verified at 99.99% (4N) or 99.995% (4N5) by third-party assay, and every bar ships with its assay certificate matched to its serial number. Ideal for banks, refiners, distributors, and manufacturers purchasing at scale — learn more in our LBMA standards guide and how to verify LBMA compliance when sourcing from Hong Kong.
| Purity | 99.99% (4N) / 99.995% (4N5) |
| Weight Options | 15kg (~482 oz) — Standard Good Delivery Bar; 1kg / 100oz / 10oz bars |
| Standard | LBMA Good Delivery |
| Certification | Third-party assay certificate (CCIC), serial-number matched |
| Packaging | Individual serialized, sealed |
| MOQ | 12 bars (≈180kg); smaller sizes by arrangement |
| Delivery | FOB Hong Kong / CIF global ports |

Silver grains are the preferred raw form for jewelers, casting houses, and industrial processors. Our 99.99% pure silver grains (1–3mm) are produced under controlled melting and granulation to ensure uniform size, dense structure, and consistent melt behavior for jewelry casting, ingot production, and industrial alloying. Every batch is analyzed by ICP-OES with a certificate of analysis included, so you know exactly what you are melting. Grains are packed moisture-free in 25kg sealed bags and ship worldwide from Hong Kong with full export documentation — see how buyers import silver to the United States and Japan.
| Purity | 99.99% (4N) |
| Size | 1–3mm granules |
| Standard | ICP-OES assay per batch |
| Certification | Certificate of Analysis (COA) |
| Packaging | 25kg sealed bags / 500kg pallets |
| MOQ | 100kg |
| Delivery | FOB Hong Kong / CIF global ports |

Our 99.9% silver powder (200 mesh, approximately 74µm) serves the electronics and advanced materials industries — conductive pastes for circuit printing, front-side metallization for solar cells, contact materials, and powder metallurgy. Produced by atomization with a controlled particle size distribution, it delivers consistent sintering behavior and high electrical conductivity. Supplied in 25kg sealed drums with a certificate of analysis per lot, it is ideal for paste manufacturers, PV cell producers, and electronics component makers seeking a stable bulk supply chain. Track the industrial demand drivers in our silver market Q3 2026 outlook.
| Purity | 99.9% |
| Particle Size | 200 mesh (~74 µm) |
| Morphology | Irregular (atomized) |
| Certification | Certificate of Analysis (COA) per lot |
| Packaging | 25kg sealed drums |
| MOQ | 50kg |
| Delivery | FOB Hong Kong / CIF global ports |
Strategically located with world-class logistics infrastructure and a deep bullion market ecosystem (CGSE, HKMA-compliant channels).
Every shipment independently verified with assay certificates matched to serial numbers or batch lots.
Full compliance with London Bullion Market Association Good Delivery standards and global refining practices.
Reliable shipping to US (LA, NY, Houston), Japan (Tokyo, Yokohama), the EU, and the Middle East by air or sea.
Silver's electrical and thermal conductivity makes it irreplaceable in conductive pastes for printed circuits, membrane switches, contacts, and EMI shielding. Our 200-mesh silver powder and 99.99% grains give component makers a consistent, certificate-backed raw material for paste formulation and alloying, with stable bulk pricing and documented lot traceability.
Photovoltaic cells rely on silver paste for front-side metallization — the fastest-growing industrial silver demand channel. Solar manufacturers need a dependable supply of high-purity silver powder with consistent particle size and sintering behavior. Our atomized 200-mesh powder is produced for exactly this use case, backed by per-lot certificates of analysis.
Jewelers and casting houses worldwide prefer 1–3mm silver grains for lost-wax casting and ingot production: uniform granule size means predictable melt behavior and fewer defects. Our 99.99% grains melt cleanly and consistently, and Japan's jewelry and metalcraft industries are among our most active casting-grain markets.
Institutions, distributors, and trading houses source LBMA Good Delivery bars for investment portfolios and onward wholesale distribution. Serialized bars with matched assay certificates give buyers the audit trail required by banks and regulated bullion programs. See how US buyers structure imports in our US import guide.
Hong Kong is one of the world's deepest and most liquid precious metals hubs, and wholesale silver buyers come to us for volume, transparency, and speed. We supply LBMA Good Delivery bars from 12 bars (≈180kg), silver grains from 100kg, and silver powder from 50kg to wholesalers, refiners, manufacturers, and trading companies across the US, Japan, Europe, and the Middle East. Pricing is quoted against LME/SGE daily silver prices plus a transparent premium, with a 10-day price-fixing window after contract signing so you can lock the market on your preferred day. All shipments move FOB Hong Kong or CIF to major ports, with complete documentation: commercial invoice, packing list, certificate of origin, and assay certificate. For a full picture of how silver moves out of Hong Kong, read our Hong Kong silver export guide and air vs sea shipping guide.
Founded by industry veterans with over 15 years of experience in precious metals trading, HK Changjiang has delivered 500+ shipments to importers worldwide with documented assay chains and zero compliance incidents.
One point of contact for quotes, contracts, pricing windows, shipping coordination, and customs documentation.
KYC/AML-aligned processes, LBMA-compliant sourcing from listed refiners, and independent verification on every lot.
Quotes within one business day, transparent premiums, and no hidden fees — the terms in the contract are the terms you pay.
Whether you are a distributor adding a new silver line, a refiner securing feedstock, or a manufacturer building a stable raw-material pipeline, we act as your long-term supply partner in Hong Kong. Learn more about our company and standards, or start a conversation on our contact page.
Trust is the currency of the bullion trade, and every order we ship is backed by a documented verification chain. Silver authentication starts at the source: we source exclusively from LBMA-listed refiners and audit the refining certificates before any metal enters our stock. Each silver bar carries an individual serial number that is recorded on the commercial invoice, packing list, and third-party assay certificate — so your downstream buyer or customs broker can trace the metal from refiner to delivery. Silver grains and silver powder are verified by ICP-OES laboratory analysis, with the certificate of analysis issued per batch or lot. On request, we can arrange independent pre-shipment inspection (SGS/CCIC) at the Hong Kong vault before dispatch. This is the same verification discipline we explain in our guide to verifying LBMA compliance when sourcing silver bars — and it is how we protect buyers from the counterfeit and under-fineness risks that exist in the market.
Determine batch quantity and estimated unit price based on the current market. Pay a 20% deposit of the estimated total via TT wire transfer after signing the contract.
Within 10 calendar days of signing, fix (lock) the final silver price at any time based on LME/SGE daily quotes. Choose your preferred pricing day.
Once the price is fixed, pay the remaining 80% balance and withdraw the goods within 10 days, and no later than the end of the month. We dispatch immediately after payment clears.
Prefer to talk directly? Contact our export desk by email at mikelin@helinsilver.com or on WhatsApp at wa.me/447599094629 — we respond to all inquiries within one business day.
We supply 99.99% (4N) and 99.995% (4N5) purity silver bars, 99.99% silver grains (1–3mm), and 99.9% silver powder (200 mesh). All products are LBMA compliant with full assay certificates.
For LBMA Good Delivery bars the MOQ is 12 bars (approximately 180kg). Silver grains MOQ is 100kg and silver powder MOQ is 50kg. Smaller pilot orders can be arranged on request.
Yes. Every silver bar ships with a third-party assay certificate (CCIC) matched to its serial number. Grains and powder are supplied with an ICP-OES certificate of analysis per batch or lot.
We ship FOB Hong Kong or CIF to major ports worldwide by air or sea, with full export documentation including commercial invoice, packing list, certificate of origin, and assay certificate.
Pricing is based on LME/SGE daily silver quotes plus a transparent premium. After signing the contract you can fix the final price within 10 calendar days based on your preferred market day.
Yes. We supply 15kg (~482 oz) LBMA Good Delivery standard bars, individually serialized and sealed, alongside 1kg, 100oz, and 10oz bars for wholesale distribution.
Organization: Hong Kong Changjiang International Limited (香港长江国际有限公司)
Products: Silver Bars 99.99% / Silver Grains 1–3mm 99.99% / Silver Powder 200 Mesh 99.9%
Product Details: LBMA Good Delivery 15kg (~482 oz) bars, 1kg/100oz/10oz investment bars, grains MOQ 100kg, powder MOQ 50kg, bars MOQ 12 bars (≈180kg)
Target Markets: USA (NY, LA, Houston) / Japan (Tokyo, Yokohama, Osaka) / Europe / Middle East
Certifications: LBMA Compliant / SGS & CCIC Third-Party Tested
Experience: Founded by industry veterans with over 15 years of experience in precious metals trading; 500+ shipments delivered with zero compliance incidents
Contact: mikelin@helinsilver.com | WhatsApp wa.me/447599094629 | Telegram @mikelinsuperbot
Address: Unit 1618B, 16/F Pioneer Centre, 750 Nathan Road, Mong Kok, Kowloon, Hong Kong