C3is Inc.

C3is has priced an underwritten public offering of 11.535 million units at $0.52 per unit, expecting gross proceeds of approximately $6.0 million. Each unit consists of one common share and one Class F warrant to purchase one common share, with the warrants immediately exercisable at $0.52 per share and expiring in one year. The warrant exercise price will be adjusted to 70% of the initial price on the second trading day after the offering closes and to 50% on the fifth trading day. The offering is expected to close around July 28, 2026, and the underwriters have a 45-day option to purchase up to 908,765 additional shares or warrants.

President Trump declared the U.S. would act as the 'Guardian of the Hormuz Strait' and charge a 20% fee on all transiting cargo to cover security costs, prompting the International Maritime Organization to state there is no legal basis for mandatory tolls to transit a strait. The announcement follows escalating clashes in which Iran has targeted commercial vessels and vowed to impose its own fees for passage, while the U.S. has conducted airstrikes against Iranian installations. The IMO, the U.N. body overseeing global shipping safety, clarified that freedom of navigation is guaranteed under customary international law, which the U.S. has historically recognized. The proposed fee marks a shift toward transactional foreign policy, raising concerns that allies may seek alternative security arrangements and that other powers could assert similar claims in contested waterways.