A significant regulatory accusation landed on crypto exchange HTX this week, and the exchange is pushing back hard.
The UK's Foreign Office sanctioned HTX, saying there were "reasonable grounds to suspect" the exchange was assisting A7 LLC, the issuer of the ruble‑linked A7A5 stablecoin, which the UK says is "carrying on business in a sector of strategic significance to the Government of Russia."
The allegation is serious: that HTX helped facilitate Russia's ability to move funds and sustain its war in Ukraine through a crypto stablecoin. HTX says that's simply not true.
HTX's Response: We Said No
The exchange didn't stay quiet. Its response was direct and specific.
"A7A5 was trying to list their stablecoin. However, following our rigorous internal due diligence and compliance review processes, their application was explicitly rejected," an HTX spokesperson told CoinDesk.
That's a clear denial with a clear reason. HTX isn't claiming it never heard of A7A5, it's saying it reviewed the application and turned it down. The exchange is essentially arguing that refusing to list the token is the opposite of cooperating with it.
Every Major Exchange Also Refused
HTX wasn't alone in rejecting A7A5. According to the token's own executive, the ruble stablecoin was turned away everywhere it tried.
"We approached all the leading centralised exchanges several months ago in order to list A7A5, including HTX," A7A5 executive Oleg Ogienko told CoinDesk. "But all of them rejected our application almost at once because they are scared of secondary sanctions."
That detail is important. If every major exchange refused A7A5 specifically because of secondary sanctions fears, it makes it much harder to argue that HTX was uniquely helping Russia. The entire centralised exchange landscape drew the same line.
The UK Didn't Provide Specific Evidence
One notable aspect of the UK's sanction is what it didn't include.
In the sanctions note issued on Tuesday, the Foreign Office didn't provide specific evidence of any HTX‑A7A5 cooperation. The ministry said it had "reasonable grounds to suspect" HTX was assisting A7.
"Reasonable grounds to suspect" is a lower threshold than proven cooperation, and it leaves room for HTX to contest the designation. That may be precisely what the exchange intends to do.
A7A5 Has Found a Different Path
As for the ruble stablecoin itself, Ogienko isn't particularly bothered by the centralised exchange rejections anymore.
"Now, we do not need their listing, because our business model runs on DeFi infrastructure," he told CoinDesk. "Nevertheless, we are open for interaction with centralised exchanges if they want to increase their real trade volume and attract good clients."
The pivot to DeFi means A7A5 has found a way to operate without going through any gatekeeper that fears Western sanctions, a pattern that regulators find deeply concerning.
Compliance Claims
Ogienko insisted A7A5 is fully compliant with Kyrgyz and Russian regulations and the principles set out by the Financial Action Task Force. "We do not violate any legislation," he said.
Whether Western regulators accept that framing is a very different question, and the UK sanction makes clear they do not. HTX is now caught in the middle of that dispute, fighting to prove it kept its distance from the very beginning.
