PT Indosat Ooredoo Hutchison Tbk (IDX:ISAT) is considering options for its fiber assets including a stake sale, according to people familiar with the matter, as digital infrastructure assets in Southeast Asia continue to draw interest from global investors. The Jakarta-based company is conducting a strategic review for its fiber business, the people said, asking not to be identified because the matter is private. A transaction could value the assets at more than $1 billion, with other companies in the industry and investment funds potentially interested, the people said.