Corporate announcements surrounding the Trump administration's tariff refund application process are increasing, with Ford Motor Company and General Motors becoming the first automakers to publicly disclose their participation.

Ford Chief Financial Officer Sherry House stated during an earnings call in late April that the company had recognized a$1.3 billion gainrelated to a potential tariff refund in the first quarter. The disclosure came one day after rival General Motors announced it expected to receive$500 million in tariff refunds

"We are not yet certain when this refund will arrive," House said regarding the company's expected refund. "We have not included it in our guidance at this time."

U.S. Customs and Border Protection beganaccepting corporate refund applicationslast month, related to tariffs that the U.S. Supreme Court ruled invalid in February. The agency expects to begin issuing refunds for the invalid tariffs during theweek of May 11.

Ford and General Motors are among many companies that addressed the topic in recent earnings calls.

On April 24, Procter & Gamble Chief Financial Officer Andre Schulten said the company is estimating a potentialafter-tax refund amount of approximately $150 million. He also noted that the exact amount the company ultimately recovers remains unclear.

Apple is also applying for refunds. According to Chief Executive Officer Tim Cook, if the refund is successful, the funds will bereinvested in U.S. innovationand "advanced manufacturing" sectors.

"Regarding applications for refunds of tariffs already paid, we are following the established process," Cook said during an earnings call on April 30. The iPhone maker plans for any use of refunded funds "to be incremental to our previous commitments in the U.S."

Apple did not disclose the amount of refund it expects to receive, nor did it provide further details on its reinvestment plans. An Apple spokesperson did not immediately respond to a request for comment.