I went to Bursa last month but they said to go back to the broker of the deceased. You will need grant of probate, death cert.

The executor will need to go to UOB KayHian to open a trading account + CDS account, submit all relevant documents plus any related fees & transfer fees to Bursa.

I'm at the final part, Bursa has approved transfer and hopefully all will be done by next week as it has been over a month.