
Headquartered in Longhua District, Shenzhen, LongLian Tech is a high-tech enterprise focused on blockchain infrastructure innovation, Web3 ecosystem development, and application deployment. The company specializes in blockchain R&D, multi-chain digital wallets, high-performance trading systems, GameFi, and metaverse ecosystems — building a full-chain service system with proprietary technology, independent products, and a closed-loop ecosystem.
The company has a highly-educated, multi-disciplinary, hands-on R&D team. Core members come from renowned blockchain enterprises, internet technology companies, and cryptography security institutions, with years of experience in low-level protocol development, public chain architecture design, cryptographic security, smart contracts, high-concurrency trading systems, and GameFi engine development. The team specializes in distributed ledgers, consensus algorithms, cross-chain interoperability, zero-knowledge proofs, secure asset storage, and risk control/liquidation — committed to rigorous development, security auditing, and continuous iteration to ensure products are efficient, stable, secure, and trustworthy.
Leveraging top-tier technical expertise and proven deployment capabilities, LongLian Tech provides secure, compliant, and scalable blockchain solutions for global users and partners.

Online Marketplace System
Full-Service Blockchain Product Provider
Public Chain/Mainnet + Explorer
Full-Service Blockchain Product Provider
Java Contract Exchange Development
Full-Service Contract Product Provider
IM Social Wallet (Debox-style)
Full-Service Social Product Provider
Decentralized Wallet & Mining
Full-Service Social Product Provider
DApp Contract Development
Full-Service Social Product Provider
Staking & Mining DApp Development
Full-Service Social Product Provider
DApp Marketplace Development
Full-Service E-Commerce Provider

Scenario-Based Applications
Mnemonic-encrypted wallet + multi-chain blockchain applications supporting major networks and their token ecosystems — including BTC, ETH, BSC, TRON, HECO and more — covering over 300,000 digital assets to meet diverse user needs. Case 1 - [LONGX Wallet] Case 2 - [DANDELON Wallet] Case 3 - [U-Pay Wallet] Case 4 - [COKE Wallet] Case 5 - [HipPay Wallet]
Online Marketplace System

Public Chain/Mainnet + Explorer

Java Contract Exchange Development

Decentralized Wallet & Mining

On-chain Smart Contract Development

Staking & Mining DApp Development

Billion-User Scale Architecture
High-concurrency, high-availability system design
Leading Tech, Fully Independent
Proprietary core code, secure and auditable
Cross-domain, Diversified R&D
Covering finance, gaming, and social scenarios
Multi-Integration
Multi-chain, multi-wallet, multi-protocol support
Full-Featured
One-stop service from infrastructure to application
Rigorous Delivery Standards
CMMI-compliant, test coverage meets benchmarks
Service Highlights
24/7 Technical Support
Senior Development Team
100+ Professional Blockchain Engineers

National High-Tech Enterprise
With core technology and innovation capabilities, committed to driving industry progress and technological advancement, leading cutting-edge tech development.

International CMMI Level 3 Certified
CMMI Level 3 certified, ensuring efficient project development processes and quality, effectively meeting client needs.

Zero Security Incidents
Strictly enforcing security standards and processes, meticulously controlling every development phase — maintaining zero security incidents for a decade.

10 Years of Blockchain Development
A decade of deep blockchain development, accumulating rich experience and technical expertise, focused on building efficient, secure, and innovative blockchain solutions.








