ENEOS is buying the largest butadiene producer in North America, and the section of the filing where the price goes says the two sides agreed not to say
Section 5 of the filing is one sentence long.
That is the section headed acquisition price, and what it says is that the number is not disclosed, pursuant to the confidentiality agreement between the parties. ENEOS Holdings told the Tokyo exchange on Friday that its board had resolved to buy TPC Holdings of Houston, that the merger agreement was signed the same day, and that the deal should close in October subject to regulatory approvals. It did not say what it is paying, and the English release it issued alongside does not either.
What is being bought
TPC Group separates and purifies the four carbon fraction that comes off a cracker and sells what it makes from it. ENEOS says the company holds the largest North American market share in butadiene, raffinate, 1-butene and polybutene, and that the combined group will rank third in the world for butadiene capacity.
That matters to ENEOS because butadiene is the feedstock for the elastomers it already sells, including the solution polymerised styrene butadiene rubber that goes into low rolling resistance tyres. The company frames the purchase as portfolio restructuring under its fourth medium term plan, and says the American materials industry is competitive because shale gas feedstock is cheap while Japanese domestic demand is shrinking with the population.
The mechanics are worth reading twice
This is not a share purchase. A special purpose vehicle set up under a wholly owned American subsidiary of ENEOS merges into TPC, and TPC is the company that survives. The 27,793,565 TPC shares now outstanding are cancelled, and the people holding them get a right to cash instead. The vehicle's own 1,000 shares become 1,000 shares of the surviving company.
That is why the table reports 27,793,565 shares acquired and 1,000 shares held afterwards, which is 100 percent of the voting rights.
Who is selling, and the one number the table does show
Three asset managers own better than four fifths of TPC Holdings between them. Redwood Capital Management holds 40.5 percent, Monarch Alternative Capital 21.4 percent and PGIM 19.8 percent, with other shareholders on 18.3 percent. The filing gives Redwood and Monarch the same street address in New York.
TPC Holdings does not publish its own three year record here. The note under its table says those results are withheld under confidentiality obligations with the counterparty, so the only history disclosed is that of the operating subsidiary underneath it.
That history has a shape. TPC Group's sales ran 1,587m dollars in 2023, 1,681m in 2024 and 1,511m in 2025. Operating profit went 93m, then 118m, then 25m. Below the operating line the last year turns negative: ordinary profit of minus 44m dollars and a loss attributable to owners of 34m, against profits of 26m and 9m in the two years before.
One more pair of figures sits in that table. Net assets per share fell from 575,947 dollars at the end of 2023 to 313,405 a year later, a drop of 262,542 dollars, and the dividend per share declared in that same year was 271,845 dollars. No dividend was declared in 2025. The filing sets those numbers out and explains none of them.
ENEOS says the effect on its own consolidated results is still being examined, pending the consolidation date, the final price and the purchase price allocation, and that it will disclose any revision when there is one.
