This card is only good for a single purpose: to spend $10,000 SGD within the first 3 months to earn 48,000+ miles. After that, NEVER USE IT AGAIN as it earns a dismal 0.83 miles / S$. The attraction is in the bonuses - 5k miles for the first charge, and 35k miles after spending $10k in the first 3 months.

Note that you'll need to pay the annual fee to get the bonuses, but you get 4x SATS / Plaza Premium lounge passes and a free night at a Millenium Hotel property worldwide, so it evens out.

Earn Rate: 48k miles for the first $10k (1 miles / $1.20 sustained)
Minimum Income: $50,000 / year for Singaporeans
Annual Fees: $256.80 / year
Website: https://www.americanexpress.com/sg/content/singapore-airlines-krisflyer-ascend-credit-card/