Business English has more strict and clearly defined rules for vocabulary, grammar, sentence structure, and prose. Clarity and consistency are important components of business English, which is why it focuses so heavily on things like strong vocabulary and well-written sentences.
Business English is the type of English used in business contexts, such as international trade, commerce, finance, insurance, banking, and many office settings. It entails expectations of clarity, particular vocabulary, and grammatical structures.
Business English is a part of English for specific purposes and can be considered a specialism within English language learning and teaching or a variant of international English. Wikipedia
Business English is used by native and non-native English speakers around the world. Better English skills make teamwork more effective. English writing and speaking skills improve communication with co-workers and clients from other countries.
In general, Business English is a form of English specially suited to international trade, commerce and finance. As such, Business English is the kind of English typically used in, for example: business meetings. sales presentations. negotiations.
