Of the 40 countries signed up to the OECD Anti-Bribery Convention, only four are found to be engaged in "active enforcement" of the rules, according to Transparency International (TI), which has urged other nations and territories to join the convention.
"The G-20 [Group of 20] has repeatedly recommended that all G-20 states adhere to the OECD [Organisation for Economic Cooperation and Development] Anti-Bribery Convention. China, India, Indonesia and Saudi Arabia have not yet done so. In view of their growing role in international business, they should do so promptly.
"We also encourage Hong Kong, Malaysia, Singapore and Thailand to join the convention," the anti-corruption organisation said in its annual report released this week.
The four countries with active enforcement of the rules in regard to corruption by public officials are Germany, the United Kingdom, the United States and Switzerland, which control 26.2 per cent of the world's exports.
Italy, Australia, Austria and Finland - with 6.1 per cent of global exports - are rated by TI as signatories with moderate enforcement.
For a country to be classified in the "active" or "moderate" enforcement categories, at least one major case needs to have been commenced or concluded in the past four years.
The remaining 30 countries - accounting for 28.2 per cent of world exports - are those with "limited or little" enforcement, according to TI's report on the enforcement of rules on foreign bribery.
The OECD convention targets officials who have committed any forms of bribery in order to increase exports from their countries.