Blockchain Fintech · Bangkok · Est. 2015

The Future
of Digital
Finance

Dwin Intertrade bridges traditional finance with blockchain — issuing ERC-1400 security tokens, tokenizing real-world assets, and delivering enterprise-grade smart contract security from Bangkok to the world.

$200B
Proof of Reserve
322%
Collateral Ratio
963
Selectors
12/12
Verified
ERC-1400 ◆ LIVE
$200B RESERVE ▲
ISO 37001 · 27001
// 01 — PRODUCTS

Our Product Ecosystem

Four flagship products covering regulated digital currency, security auditing, blockchain wallet security, and premium Thai commerce.

PRODUCT · 01
USD DWIN
USDW · FIAT LIQUIDITY TOKEN
PROOF OF RESERVE COVERAGE322.58%

A fully ERC-1400 compliant security token on BNB Smart Chain, pegged 1:1 to the US Dollar with a $200B reserve backing. Built on the EIP-2535 Diamond architecture with 963 on-chain function selectors, ERC-3643 T-REX identity registry, and Chainlink-compatible Proof of Reserve.

ERC-1400ERC-3643EIP-2535BSC ID 56Chainlink PoR
usddwin.io
PRODUCT · 02
🔍
Kritiq
SMART CONTRACT AUDIT

Professional smart contract auditing and security research. Kritiq delivers ISAE 3000 / SSAE 18 compliant audit attestations — anchored on-chain as verifiable ERC-1643 documents. Used to audit USDW's own 102-facet diamond deployment, identifying 3 critical vulnerabilities before launch.

ISAE 3000SSAE 18On-ChainSolidity 0.8.x
kritiq.tech
PRODUCT · 03
🛡
Wallet Shield
QUARIVEX · BLOCKCHAIN SECURITY

Enterprise-grade wallet and transaction security. Protects against phishing, drainer contracts, sandwich attacks, and malicious approvals. Powered by Dwin's BSC-deployed 6-layer security stack: AttackBotKiller, LPVampireKiller, SwapGuard, UniversalPegGuard, ContractGuard, and USDWShield.

Anti-DrainerBot ProtectionMEV ShieldLP Security
quarivex.cloud
PRODUCT · 04
🌿
Khiri
PREMIUM THAILAND PRODUCTS

Curated premium-grade Thai products — cosmetics, organic textiles, artisan accessories, botanical supplements, and handcrafted bags — sourced directly from Thailand's finest producers. Thailand's heritage, certified authentic, available worldwide with international shipping.

CosmeticsOrganic ClothAccessoriesPlant Extracts
khiri.shop
// 02 — SERVICES

What We Build For You

End-to-end blockchain infrastructure — smart contract architecture to regulatory compliance.

SERVICE · 01
Custom Token
Creation

Design and deploy bespoke ERC tokens — from ERC-20 utility tokens to fully compliant ERC-1400 security tokens with KYC gates, partition logic, and on-chain document registries.

  • ERC-20, ERC-1400, ERC-3643 smart contracts
  • EIP-2535 Diamond upgradeable architecture
  • Full on-chain BscScan / Etherscan verification
  • Gasless meta-transaction support (EIP-712)
  • CoinGecko / CoinMarketCap listing integration
Token Architecture
SERVICE · 02
Real-World Asset
Tokenization

Convert physical assets — gold mine reserves, real estate, investment funds — into blockchain tokens backed by verified proof of reserve. Our gold mine KYC/KYB onboarding meets ISO 37001 and FATF standards.

  • Gold mine KYC/KYB (ISO 37001 / FATF)
  • JORC / NI 43-101 geological reserve verification
  • SPV structuring for tokenized asset vehicles
  • Chainlink-compatible PoR oracle feeds
  • 120%+ collateral ratio enforcement
🏅
Asset Tokenization
SERVICE · 03
Smart Contract
Audit

Independent security audits by Kritiq, with ISAE 3000 / SSAE 18 compliant reports and on-chain attestation. Our process patched 3 critical vulnerabilities in USDW before mainnet launch.

  • Signature replay attack analysis (EIP-712)
  • Arbitrary call and access control review
  • Reentrancy, overflow, logic scanning
  • On-chain audit hash anchoring (ERC-1643)
  • Post-fix re-verification and deployment support
🔍
Security Audit
SERVICE · 04 — 09
Full Blockchain
Infrastructure

From Proof of Reserve oracles to DeFi protocols and fiat on/off ramps — we build complete blockchain ecosystems.

  • Blockchain Security — 6-layer MEV & bot protection
  • On-Chain Advertising — immutable ERC-1643 anchoring
  • Proof of Reserve — Chainlink-compatible PoR feeds
  • KYC / AML — ERC-3643 T-REX identity registry
  • DeFi Infrastructure — lending, staking, liquidity
  • Fiat On/Off Ramp — EIP-712 bank bridge
🏦
Full Stack DeFi
// 03 — TECHNOLOGY

Smart Contract Architecture

Production-grade blockchain infrastructure — verified, audited, live on mainnet BNB Smart Chain.

Diamond Contract
0xEd75AD08f416D4e53e4D45dd5140A4C8b84F39Fb
Network
BNB Smart Chain · Chain ID 56
Total Selectors
963
Deployed
31 May 2026
⬡ EIP-2535
Diamond Proxy Architecture

Single proxy routing all calls across 109+ modular facets via delegatecall. Non-custodial upgrades via diamondCut() without migrating balances or changing the token address.

ERC-20ERC-2612ERC-1400ERC-1594ERC-1410ERC-1643ERC-1644ERC-3643EIP-712EIP-7572
📊 RESERVE
Proof of Reserve

Chainlink AggregatorV3-compatible PoR oracle with 24-hour heartbeat. $200B reserve, 322% coverage.

BNB ChainGENESIS · 56
PolygonCHAIN 137
ArbitrumCHAIN 42161
🔐 SECURITY
6-Layer Protection

BSC-specific security stack covering bot attacks, LP vampire attacks, swap manipulation, peg deviation, and contract-level exploits. 83 selectors dedicated to security.

▶ AttackBotKiller · 28 sel
▶ LPVampireKiller · 28 sel
▶ SwapGuard · 27 sel
▶ UniversalPegGuard · 7 sel
// 04 — COMPLIANCE

Regulatory Standards Framework

Dwin operates to the highest international standards in AML, data security, anti-bribery, and responsible finance.

🔒
ISO 37001
Anti-Bribery Management
ABMS aligned to ISO 37001:2016. All token issuance and KYC/KYB processes governed under this standard.
🛡
ISO 27001
Information Security
Red-flag hook integrated into ERC-1400 canTransfer() compliance gate. Alignment statement anchored on-chain.
🌍
FATF 40
AML / CFT Framework
Full FATF 40 Recommendations compliance. Travel Rule support, risk-level scoring, mandatory KYC transfer gating.
🇪🇺
MiCA EMT
EU Crypto-Asset Regulation
MiCA Electronic Money Token dossier anchored on-chain. USDW structured to meet EMT classification requirements.
📋
ISAE 3000
Audit Standard
Smart contract audit reports under ISAE 3000 / SSAE 18 by Kritiq. Report hash anchored on-chain as ERC-1643 document.
⚖️
ERC-1644
Regulatory Controller
Forced transfers for AML enforcement, court orders, and sanctions compliance — all logged on-chain.
🪪
ERC-3643
T-REX Identity Standard
Global standard for on-chain KYC/AML. Country blocking at ISO 3166-1 level, investor caps, pluggable compliance module.
💎
OECD DDG
Responsible Mineral Sourcing
Gold tokenization KYC/KYB built to OECD Due Diligence Guidance for Responsible Mineral Supply Chains.
// 05 — SECURITY

Audit-Verified Security

Three critical vulnerabilities identified and patched before USDW mainnet launch. All fixes live and verifiable on BscScan.

VULN-001
HIGHFIXED
Arbitrary Call — GaslessFacet
executeGasless() accepted any arbitrary target. Attacker could impersonate the diamond. Fixed: approvedTargets whitelist enforced — op.to must match diamond or whitelisted target.
VULN-002
CRITICALFIXED
Signature Replay — FiatOnOffRamp
mintFromFiat() and confirmFiatTransfer() had no nonce or expiry — valid signatures could be replayed indefinitely. Fixed: full EIP-712 with per-address nonces, expiry, and chain-ID binding.
VULN-003
MEDIUMFIXED
Unauthorized Interface Deregistration
setSupportsInterface() had no access control — any wallet could deregister ERC-20 or ERC-1400 interfaces. Fixed: LibDiamond.enforceIsContractOwner() added to all interface setters.
12/12
Contracts Verified on BscScan
963
Selectors Post-Migration
0
Open Critical Vulnerabilities
ISAE 3000
Audit Standard by Kritiq
AUDIT ATTESTATION ON-CHAIN
0x05cf7529596a3c9828a0bf3d8a2282f571e7b056c41964455e2a40ef16763993
View Full Report →
// 06 — GLOBAL

Global Reach, Local Expertise

Multi-Chain Deployment

Founded in Bangkok 2015, Dwin Intertrade serves institutional clients, gold mine operators, and blockchain projects globally — with smart contracts deployed across BNB Smart Chain, Polygon, and Arbitrum, and compliance frameworks covering EU, FATF, and APAC jurisdictions.

🌏
Bangkok HQ
Headquarters in Bangkok, Thailand — Est. 2015. UTC+7 timezone, serving APAC, EU, and global clients.
3 Active Chains
BNB Smart Chain (genesis), Polygon, Arbitrum — with LayerZero cross-chain bridge integration live.
📜
Multi-Jurisdiction Compliance
ISO 37001, ISO 27001, FATF, MiCA EMT, OECD DDG — covering EU, APAC, and international regulatory frameworks.
// 07 — KHIRI

Thailand's Premium Products, Global

🌸
Cosmetics
Thai botanical skincare
🧵
Organic Cloth
Natural Thai textiles
🌿
Plant & Herb
Botanical supplements
👜
Bags
Handcrafted accessories

Curated premium Thai products — cosmetics, organic textiles, botanical supplements, and artisan accessories — sourced from Thailand's finest producers, certified authentic, available worldwide.

Sourced directly from certified Thai producers
Premium-grade, authentic, internationally shippable
Curated selection — Khiri means "mountain" in Thai
Supported by Dwin's ISO-certified business infrastructure
B2B bulk orders and retail both available
Shop at khiri.shop
// 08 — CONTACT

Start a Conversation

Ready to tokenize an asset, deploy a smart contract, or secure your blockchain protocol? Reach out to our team in Bangkok.

Email
contact@dwinintertrade.com
Response within 24 hours
Location
Bangkok, Thailand
Est. 2015 · UTC+7
Corporate Website
dwinintertrade.com
Services & company info
USDW Portal
usddwin.io
Token · PoR · Live data
Send a Message