Zero corruption
There is a strong culture of anti-corruption in Singapore. The whole country has become the Switzerland of Asia by having more than 50 years of proper business conduct. Many foreigners and multinational companies have their office in Singapore.
In 2018, Singapore is ranked 3rd among all countries in the world by the CPI (Corruption Perception Index), this index is widely used to measure corruption levels between countries. In comparison, Switzerland is also 3th, Germany is 11th, Japan is 18th, the US are 22th, France is 21th, and Italy is 53th. If you trust one of those countries, you can definitely trust Singapore.