Is it permissible to import goods that have an exclusive agent without his knowledge, with the aim of overcoming financial loss and achieving recovery, intending to leave them for the agent in the future?

Exclusive agency falls under concession contracts, and the exclusivity clause within it is Islamically permissible as long as it does not involve gharar (excessive uncertainty) or riba (interest). Some conditions that bring known benefits to the seller have been permitted. This condition is binding only on the two contracting parties.

Therefore, it is not permissible to import the same commodity from the principal who has contracted with the exclusive agent, because it is an aggression and an aid to not fulfilling the contract, which is what the noble verse prohibits: (And cooperate in righteousness and piety, but do not cooperate in sin and aggression. And fear Allah; indeed, Allah is severe in penalty) Al-Ma'idah/2.

As for importing it from someone other than the principal or from another country, there is no harm in it, provided that the principal does not collude in that. A Muslim must seek lawful sustenance and not hasten it through disobedience, for what is with Allah cannot be attained except through obedience to Him.