Export control is like parents controlling what toys you can share with your friends. When a country produces something, like technology or weapons, they want to make sure they keep it safe and not give it to bad people or countries. This is called sensitive technology or goods.
So, the government sets some rules on what sensitive things can be shared with other countries. They make a list of things that are not allowed to be exported or shared with certain countries or people who may use it for bad things like terrorism, wars or to hurt people.
By doing this, the government makes sure that sensitive things stay in the right hands and don't threaten anyone's safety or security. It's like keeping your favourite toys safe from your little brother who may not know how to play with them nicely.