Counterclaim refers to a counterclaim made by a defendant to a judicial authority in a civil action that has already been commenced. The defendant in the counterclaim is the plaintiff in the suit, and the counterclaim should be filed before the judgment. Counterclaim can only be filed with the judicial organ, and it should be related to the object of action or grounds of action.
According to the above definition, which of the following is a counterclaim?
The two companies in Guangdong had an economic dispute and the seller sued the buyer for non-performance of the contract and non-delivery of all the loan. At the hearing, the buyer argued that the sellers goods were of poor quality and that he had sufficient cause to bring an action against the defendant.