should be "provided a Technical …" In a business sense, "offer" often has to do with price, whereas proposal is more complicated and might include various terms. I offered him $8000 for the car and he agreed. (verb) He refused my offer but made a counter offer which I took. (noun) Three contractors submitted proposals for the construction of the factory. (The proposal might include several terms, such as details of the factory, price, how long it will take to build, guarantees etc.) Both words have non-business usages too, of course. She accepted his marriage proposal. I propose that we take a long vacation. (suggest) She offered to give me a ride to work when my car broke down. (She asked me if I wanted to ride with her)

Thanks!

A proposal is usually a plan or suggestion. It is more formal and can be a written plan given to others to consider. ‘He wrote the proposal and sent it to his boss to look at’ An offer is usually like a favour or a smaller action. An action to express your willingness to do something for someone. ‘He offered to drive me home after work.’ Hope this helps! :)