China Telecommunications Corp, the country's third largest telecom carrier by mobile subscribers, said on Wednesday that Brazilian telecom company Oi SA was among the several potential targets it had considered for investment

Oi, which provides phone services in hundreds of Brazilian cities, filed for bankruptcy earlier this year. Also known as the largest filing of this kind in the country's history, the carrier has been struggling with a debt of $19 billion.

China Development Bank is one of Oi's creditors with $1.2 billion stake