Sulnox's 198% Volume Surge: Real Turnaround or Tiny-Q3 Hype?

Q1 2025 product volume jumped, and that is the core of the bull case

In Q1 2025, Sulnox sold 198% more product vs. Q1 2024. More important, revenue also rose: the company reported £523k of revenue, up 11% on Q4 and 157% on Q1 2024. When volume and revenue move together from a tiny base, it is easier to read that as real demand rather than a one-off promotional spike.

Sulnox also says its technology is applicable to over 70% of every barrel of oil. That does not prove commercial success, but it helps explain why investors care about the size of the market if execution holds.

The bull and bear case still sit on different parts of the same evidence

Bulls: follow-through is improving

The company said trading remained strong into the next quarter, with sales have continued to grow strongly into Q2. Its broader Q3 2025 update also showed continued momentum in sales and orders, which supports the idea that early adoption is deepening rather than fading after one strong quarter.

Bears: market structure still limits the trade

Sulnox trades on AQSE and OTCQX, so this remains a micro-cap stock with thinner liquidity and more execution risk. That does not break the thesis, but it does make the investment narrower and more sensitive to delays or disappointments.

Why this looks more durable than a single-quarter sales flash

Revenue rose alongside volume

The key point is not the 198% headline by itself. In the same Q1 2025 update, Sulnox reported 19% QoQ volume growth at the same time as 11% on Q4 revenue growth. That combination matters because price, mix, or one-off orders can lift revenue on their own. Volume growth alongside revenue growth is a better sign that demand is becoming repeatable.

Commercial momentum is broadening

Sulnox said Q1 was driven by repeat and expanding sales with existing marine clients and new clients. It also said the number of shipping companies evaluating Sulnox Eco increased from 55 shipping companies evaluating Sulnox Eco™ in Q4 to 61 in Q1, with further "marquee names" beginning evaluations. That points to a clearer conversion path: pilots turn into larger orders, and existing customers use more of the product over time.

What decides whether this is a turnaround or just tiny-base noise

The next check is whether growth keeps compounding. The clearest signals would be: - more repeat orders from existing customers - more evaluations turning into shipments - revenue continuing to track volume

From there, the market will decide whether Sulnox is becoming a real small-cap growth story or just another niche discovery that peaked too early.