Same Chain, New Name? Unpacking Grinex’s Connection to Garantex

Merkle Science
March 31, 2025

Sanctions can take down a website—but they can’t erase a blockchain footprint.

After the takedown of Garantex’s domain, many viewed it as a win for international sanctions enforcement. But in crypto, infrastructure doesn’t just vanish—it evolves.

Enter Grinex.io. A new exchange with a familiar feel, Grinex has quickly drawn attention for its uncanny resemblance to Garantex. While there’s no definitive proof that it’s a rebrand or direct successor, on-chain behavior reveals a tangled web of technical and transactional ties.

At Merkle Science, we’ve been tracking Grinex using our real-time attribution pipelines on the Tron network. While our coverage currently focuses on USDT, we’re expanding to include assets like A7A5, a ruble-backed stablecoin.

Here’s what we’ve uncovered so far:

Key Signals of Continuity

  • Wallet overlap: We’ve seen multiple transfers from wallets previously associated with Garantex into Grinex deposit addresses. This suggests that liquidity relationships didn’t disappear—they migrated.

  • Hot wallet activity: Grinex is actively using several hot wallets, including:

    • TNZxGWCwvsHr6JxQxzoeDXV597Yf7Zb7nV
    • TC8axQvzJEVR3NKN6mZnJtGy7537GEmh38
    • TEcuHDQthTmULe8fFLUccBPpjfXaTmJuuD
    • TAYhjpL8pPs8T84FSM329nffQpc6jD8GBM
    • TMuCgBejD5RsNANZdjGtaM3YyKGNgDoy7N
    • TL1k1U6SHohxBqb68kCodxHc9y2LXoDSep

  • Familiar UX: Grinex’s user interface looks strikingly similar to Garantex. Deposit functions appear active, while withdrawal options are seemingly limited to Russian KYC users—mirroring the previous model.

  • Asset overlap: Grinex currently lists only USDT and A7A5 on Tron—the same footprint Garantex maintained before sanctions hit.

  • Frozen fund recovery: At least one user has moved previously frozen Garantex funds to a Grinex wallet, signaling possible account-level continuity.

A7A5: A Ruble-Backed Puzzle Piece

One asset in particular raises eyebrows: A7A5, a stablecoin backed by the Russian ruble and issued by Kyrgyz firm Old Vector. It's part of Promsvyazbank’s A7 cross-border payment system and operates under Kyrgyz regulatory frameworks.

Its presence on Grinex points to a broader issue: jurisdictional arbitrage. As sanctioned platforms look for new lifelines, they increasingly rely on regulatory gray zones and geopolitical gaps to maintain operations.

Same Playbook, New Face

What we’re seeing isn’t unique. It’s a pattern we know well—operational laundering: rebrand the shell, keep the engine. From a compliance and enforcement perspective, these tactics demand a more adaptive, long-term response.

What This Means for Compliance Teams

Sanctions don’t end with takedowns. The infrastructure often lingers, shifting just enough to stay one step ahead. Here’s what’s needed to keep up:

  • Persistent post-sanctions monitoring

  • Real-time clustering and attribution pipelines to spot evolving connections

  • Behavioral heuristics that update with laundering strategies

  • Cross-border interagency coordination to close jurisdictional gaps

At Merkle Science, we’re continuing to monitor Grinex and will share more findings as this case develops. For now, the blockchain is telling a story that’s hard to ignore—and it’s one that’s far from over.