TOT's Takahiro Kawamura struck the post with a header in a first half that was largely dominated by the home side.
The deadlock was broken for the hosts after the break when a cross from the left flank was headed in by ex-Muangthong and Chonburi striker Kone Mohammed.
Napat Thamrongsupakon's scuffed shot bounced onto the bar and Saravut Konglap in the TOT goal produced a 'supersave' from a header in injury time as Samut Songkhram pressed for an equalizer.
|Match winner - Kone Mohammed|
The 1-0 was a fair result as TOT were the better side for the majority of the game.
Next Saturday, TOT make the short trip to BEC Tero while Samut Songkhram are back in the capital to face Army United. Both sides go into these games knowing that a win will secure their TPL future. Anything other than a victory would leave the pair of them looking nervously at the outcome of the clash between Sriracha and Siam Navy. It should be a dramatic evening next Saturday.