Oil price volatility, influenced by events like the Iran War escalation, Hormuz Blockade, and geopolitical ceasefires, directly impacts NewMarket Corporation's raw material costs and demand for its petroleum additives.

Rising inflation in the US (3.3% in March) and Euro Area (2.6% in March) can lead to higher input costs for NewMarket's manufacturing processes, including raw materials, energy, and labor, potentially compressing profit margins and affecting overall profitability.

Intensifying international competition, particularly from China, and the impact of changes in international trade relations and tariffs, pose significant headwinds for NewMarket Corporation, affecting sales and market share in its specialty chemicals and materials segments.