For the past two weeks, prompt Mont Belvieu propane prices have been at a steep premium to the forward market, reflecting turmoil since the onset of the tariff war. As we covered in Bad Blood, propane is subject to the 125% tariffs in China, which devastates the economics for propane dehydrogenation (PDH) using U.S. propane as the feedstock. China took 18% of U.S. propane exports in 2024, with much of the volume going to the Chinese PDH market.

As the tariff war accelerated in the first weeks of April, propane prices dropped along with most energy commodities (figure below, left graph). But future month propane prices dropped even further due to fears of lower Chinese demand for propane due to expected cuts in PDH runs. Prompt prices have been supported in part due to trader repositioning cargos to alternative destinations to China and pulling cargos away from non-China markets. By April 8, the value of prompt propane was 13.5 c/gal over May (right graph below). Even when propane prices rebounded on April 10, the prompt differential remained high and has continued to be over 10c/gal since.

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