On January 4th, the MIBK market in East China remained stable, with the mainstream price range for MIBK in the region hovering around 6,850–6,950 RMB/ton. The upstream raw material acetone saw a slight increase in its negotiation range, though the change was minimal, providing limited cost-side support. Downstream demand remained tepid, with most buyers procuring on an as-needed basis, resulting in a lackluster market performance.