Simplify the following text for a Grade 9 native English-speaking person.
Original: SingTel is also the largest company by market capitalization listed on the Singapore Exchange and is majority owned by Temasek Holdings , the investment arm of the Singapore government .
Simplified: SingTel is the largest company by market capitalization listed on the Singapore Exchange . The majority of the company is owned by Temasek Holdings , the investment arm of the Singapore government .