The 18-year-old striker is currently in Holland speaking with NEC officials and holding further talks with coach Mario Been.
"The contacts have come through a well-known network, Frank Arnesen is technical director at Chelsea and the talks have been natural," technical director Carlos Aalbers told De Gelderlander.
Aalbers is now hopeful a deal can be concluded.
"We will examine the financial deal with Chelsea in the coming days," he continued. "How large is our chance [of signing him], I dare not say at this moment."