[Blasterlord2]

Actually may not be able to claim inheritance from biological parents lah.

Read this, even though this may be from another country but you can take reference from it.

An excerpt from it

Can an Adopted Child Inherit from Biological Parents?
Sometimes. Because your biological parents’ legal parental rights to you were terminated, you have no automatic legal rights to their inheritance or assets. That legal connection is instead transferred to your adoptive parents.
However, birth parents can choose to include any biological children, including you, as a beneficiary in their will. As long as none of their other family members contest the will and your inclusion, that request is honored. Birth parents will need to be clear in their will about how to contact you, so their estate manager can get in touch with you about inheritance.
If your birth parents die without making a will, or if they don’t include you in their will, then you will not automatically inherit from them, unlike your adoptive parents.

https://consideringadoption.com/adopted/...l-parents/