Dutch outfit De Graafschap have announced they have agreed a deal with Charlton to sell Polish striker Piotr Parzyszek.
The 20-year-old striker has agreed a four-and-a-half-year-deal at The Valley and is due to complete a medical on Friday.
Parzyszek has scored 23 goals in 42 appearances in the Eerste Divisie.
"We would have loved to have Piotr love until the end of this season at De Graafschap but we are a proud club and will not stand in his way to make such a step," technical manager Roland Vroomans said.
Parzyszek said: "As a player, I can improve and now I am ready for my next sporting stage.
"I want to thank all the fans for the support, but also the club for the confidence and opportunities."