I found a pretty useful website to understand more about adoption in Singapore and you might want to take a look to get a clearer picture.

Adoption

Adoption is a legal process by which the rights and responsibilities to a child are given up by the biological parents and taken on by the adoptive parents.

When you adopt a child, you are creating a family. It is not just a legal matter but one that involves deep human emotions. Adopting a child and experiencing parenthood are major steps in one's life.

For those who choose it, adoption can be an enriching and fulfilling experience for both parents and child - one that can be highly rewarding but will involve specific challenges.

Throughout these pages, you will find information and resources to help guide you through the process of adopting a child. It covers the considerations involved in adopting a child, the eligibility criteria as well as the issues and challenges that occur after adoption.

• Eligibility Issues - what are the prerequisites that need to be fulfilled
• Important Considerations before Adoption - making sure that this is the right choice for you
• Adoption Process - know the procedures and conditions for local and foreign adoption
• Adoption Leave - 4 weeks of flexible leave to care for adopted newborn children aged 6 months and below
• Challenges after Adoption - important issues to consider
• Related Organisations - resources for information and assistance
• Sign up for Adoption Workshops

This is just a short overview and you can take a look at the website and read more about the various issues and considerations regarding adoption.

http://fcd.ecitizen.gov.sg/ChildrenNParenthood/AdoptAChild/