What is the fine-grained topic of the following text: For all non-Singaporean students (including Singapore Permanent Residents), in exchange for the grant received under the Tuition Grant Scheme, they are required to apply for Tuition Grant (subject to MOE's approval) and sign a Tuition Grant Agreement in which they will be contractually obliged to work in a Singapore entity for three (3) years upon graduation. Only return the topic.
Tuition Grant Scheme obligations for non-Singaporean students