Shares of United States Antimony Corporation (UAMY) experienced a significant after-hours plunge of 5.55% on Tuesday, extending the losses seen during the regular trading session. This sharp decline comes in the wake of the company's announcement of a $25 million registered direct offering of common stock, which has sparked concerns among investors about potential share dilution.

According to the company's statement, UAMY has entered into a securities purchase agreement with a leading long-only mutual fund for the aggregate proceeds. The offering, priced above market under NYSE rules, is being made under an effective shelf registration statement filed with the SEC. While the exact number of new shares to be issued was not disclosed, such offerings typically lead to an increase in the total number of outstanding shares, potentially diluting existing shareholders' stakes.

United States Antimony Corporation plans to use the net proceeds from this offering for various strategic initiatives. These include acquiring additional antimony and critical mineral inventory, expanding leasehold mineral positions in Alaska and Montana, potentially increasing capacity at the Madero Smelter, pursuing acquisitions of other critical mineral companies, and for general working capital purposes. Despite these growth-oriented plans, the market's reaction suggests that concerns over the short-term impact on share value have outweighed the potential long-term benefits of the capital raise. This negative sentiment persisted into after-hours trading, leading to the observed 5.55% decline.