Skills Development Levy
Employers have to contribute Skills Development Levy for all employees (includes full-time, casual, part-time, temporary and foreign workers rendering services wholly or partly in Singapore) up to the first $4,500 of gross monthly remuneration at a levy rate of 0.25%, subject to a minimum of $2, whichever is higher. (Remuneration is any wage, salary, commission, bonus, leave pay, overtime pay, allowance (e.g. housing) and other payments in cash.)
The CPF Board collects the Skills Development Levy on behalf of the Singapore Workforce Development Agency. The levy collected is channelled into the Skills Development Fund (SDF), which provide grants to companies that send their workers for training.
For details, read these FAQs provided by the Workforce Development Agency.