The St Etienne striker has been linked with a White Hart Lane switch, and the 23-year-old was believed to be one of a number of forwards on Andre Villas-Boas' summer shortlist.
But Chelsea are hoping to steal Aubameyang from under the noses over their London rivals, making an inquiry to the Ligue 1 club over Aubameyang's availability.
Reports in France claim that Chelsea have made the first move, as Roman Abramovich has given the go-ahead to sound out the striker's willingness to move to England.
The Chelsea owner is reportedly willing to pay up to £13m to land the striker, as £50m man Fernando Torres continues to struggle in front of goal at Stamford Bridge.
Aubameyang is the French league's second top scorer this season - only Paris St Germain frontman Zlatan Ibrahimovic has more.
14 goals in 25 games alerted Newcastle, according to the report, as the north east club have a large scouting presence in the country.
And the Gabon star has recently admitted that talk of a Premier League move has proven difficult to ignore.
The report claims the former-AC Milan youngster is likely to move on at the end of the season if St Etienne fail to qualify for the Champions League.
The French club currently sit fifth in Ligue 1, one point behind fourth-placed Nice.
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