Amazon EC2 I4g Instances are now available in additional regions

Starting today, Amazon Elastic Compute Cloud (EC2) I4g storage-optimized instances powered by AWS Graviton2 processors are now available in the Asia Pacific (Singapore) region. I4g instances deliver the best compute price performance for a storage-optimized EC2 instance and the best storage performance per TB for a Graviton-based storage instance. 

Source:: Amazon AWS