LiqTech International (NASDAQ: LIQT) filed for a $20 million public offering of common stock on Wednesday, according to a company statement.

The offering includes shares of common stock with a par value of $0.001 per share. The company is also offering pre-funded warrants to purchasers whose stock purchases would result in beneficial ownership exceeding 4.99% of outstanding shares, or 9.99% at the purchaser's election.

The pre-funded warrants will be priced at the public offering price minus the $0.001 exercise price per warrant. These warrants become exercisable upon issuance and do not have an expiration date prior to exercise.

For each pre-funded warrant sold, LiqTech will reduce the number of common stock shares offered on a one-for-one basis. The ownership thresholds of 4.99% and 9.99% apply to the purchaser and its affiliates' combined beneficial ownership immediately following the offering's completion.