An Oakland company is facing $114,400 in state and city fines for laundering campaign contributions to several former mayoral and City Council candidates, including Councilwomen Rebecca Kaplan and Desley Brooks, officials said Monday.

AB&I Foundry, a manufacturer of plumbing products in East Oakland, illegally donated nearly $24,000 to candidates in Oakland’s 2012 and 2014 City Council races and the 2014 mayoral contest, the state Fair Political Practices Commission said Monday. The company circumvented Oakland’s $700 campaign contribution limit by reimbursing its employees, officers and their spouses for writing checks, the commission said.

The commission’s staff recommended that AB&I be fined $100,000, which the company has already agreed to pay, according to an order that the state agency released Monday. The five-member commission is scheduled to vote on the fine at its July 21 meeting.

Separately, Oakland’s Public Ethics Commission levied a $14,400 penalty at its July 5 meeting, at which it ruled that AB&I had exceeded the city’s donation limits for two 2014 mayoral candidates, Kaplan and Bryan Parker.

State commission spokesman Jay Wierenga called the combined six-figure penalty “one of the highest and most significant” in the agency’s 41-year history.

The biggest beneficiaries of AB&I’s financing scheme were 2012 council at-large seat contender Ignacio De La Fuente and 2014 mayoral hopeful Joe Tuman, who received $6,300 apiece. AB&I also chipped in $4,600 for Kaplan’s 2014 mayoral bid, $2,500 for Parker’s campaign and $2,100 to incumbent Mayor Jean Quan. Brooks received $2,100 for her City Council re-election bid in 2014.

The state commission said none of the candidates was a target of the investigation. Brooks was the only candidate receiving AB&I money who won election.

In a statement, the company said the donations “went against AB&I’s policies, which prohibit such contributions. When it learned AB&I had reimbursed its employees for campaign contributions, AB&I’s parent company quickly ended any further contributions” and reported previous donations to state and local officials.

The company said it does not have any contracts with Oakland or sell products to the city.

“AB&I takes full responsibility for this mistake,” Kurt Winter, the firm’s executive vice president, said in the statement. “Although we did not realize that these reimbursements were a violation, we should have.”

Parker, a former Port of Oakland commissioner, said he had no knowledge of the laundered campaign funds “and would not have taken the money had I known.” The other recipients of AB&I’s donations could not be reached for comment.

AB&I is a division of McWane Inc., a waterworks and plumbing products company in Birmingham, Ala. Three years ago, the U.S. Environmental Protection Agency identified the Oakland company as being among the nation’s worst emitters of toxic chemicals, releasing almost 90,000 pounds of pollutants into landfills in 2011.

Rachel Swan is a San Francisco Chronicle staff writer. Email: rswan@sfchronicle.com Twitter: @rachelswan