California International Bank, known as Saigon National Bank until February, has filed to relocate its headquarters to Rosemead, according to the federal Office of the Comptroller of the Currency, which approved its new name.

The bank, which filed relocation paperwork in April, has focused on serving the Vietnamese-American community in Westminster and Garden Grove since it opened in November 2005.

The bank received a $4.5 million capital infusion last year from an investor identified as Hien Quang Do, who now owns the institution outright and has assumed the role of chairman. Do could provide another $4.5 million in capital as early as next year if certain milestones are met, according to the bank.

Neither Do nor Lin returned calls seeking comment last week.

California International is the smallest of 20 or so banks based in Orange County, according to Business Journal research, with about $52 million in assets. That’s down 20 percent from a high of nearly $66 million in 2009.

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