LOS ANGELES, United States — American Apparel Inc., which has been financially troubled for years, is seeking to expand its borrowing limits under an existing loan by bringing in new lenders, according to people with knowledge of the matter.

The revolving credit line, put in place in April 2013, is currently capped at $50 million. American Apparel is trying to increase that limit and lower its interest, which is 5 percentage points more than lending benchmarks, said the people, who asked not to be named because the talks are private.

American Apparel, which has racked up more than $300 million in net losses since 2010, looked for financing to boost its liquidity last year and received a $25 million capital commitment from hedge fund Standard General LP in July. The company, which reported $9.4 million in cash as of the end of September, has a $14 million interest payment due on April 15 under its 15 percent notes due 2020, according to data compiled by Bloomberg.

The revolving lending pact was arranged by Capital One Financial Corp. American Apparel, based in Los Angeles, hired Moelis & Co. as a financial adviser last year.

Liz Cohen, a spokeswoman for American Apparel, and Andrea Hurst, a spokeswoman at Moelis, declined to comment.

American Apparel suspended its founder and long-term chief executive officer Dov Charney in June and terminated him six months later, replacing him with Paula Schneider. The firm cited alleged misconduct and violations of company policy.

After a failed attempt to get reinstated, Charney turned to Standard General and borrowed about $20 million to increase his ownership to its current level. In order to get the deal done, Charney agreed to share voting rights on all his 43 percent stake with Standard General, giving the fund the biggest voting shares in the company.

By: Jodi Xu Klein and Matt Townsend; editors: Shannon D. Harrington, Faris Khan and Mitchell Martin.