SNSUC's data board tracks thirteen categories. The clearest signal today is that two chains have stopped moving together. Inside the heavy-oil chain, fuel oil at ¥4,529/t and bitumen at ¥5,259/t went opposite ways — bonded bunker restocking and off-season road-bitumen destocking are happening at once. In the rubber chain, natural rubber at ¥20,980/t and butadiene rubber at ¥16,795/t both rose; NR added ¥3.76 and BR ¥2.6 on the day as tire makers pulled spot supply tighter.

For the team running the data API and enterprise subscriptions, handing users one vague chemical index no longer works. We keep two books internally — energy-heavy-oil, which follows Brent and freight, and rubber-polymer, which follows vehicle output and the Southeast Asian tapping season. On one screen NR rises while bitumen falls; a single weighted average would cancel them and hide the real fundamentals.

SNSUC tags every listing with dual companyVerified and isOnline flags, and 34 listings are live right now. Operators filter by chain first, then price, which saves a lot of wasted negotiation.