By Gabriel TanFollow @@gabetan13
29 minutes into the game at the Ratchaburi Stadium, it was the newly-promoted side who took the lead after Sila Srikampun tried his luck from the edge of the area with a shot that deflected off Adul Lahso and into the back of the net.
However, as the clock ticked over into injury-time, Thiago Cunha was brought down inside the area and the referee initially awarded a freekick, only to overturn his decision and point to the spot.
After Ratchaburi's protests had been dismissed, the Brazilian striker stepped up and fired home to earn his side a share of the spoils.
Bangkok Glass' miserable season continued as they fell to a 1-0 loss at home to Police United, courtesy of Tanat Wongsuparak's 45th-minute winner.
The Glass Rabbits are now second from bottom with just one point from their opening four games, and are also out of the Thai League Cup following last week's embarrassing penalty shootout loss to Phrae United in the first round.
Suphanburi are now up to third after experienced striker Wuttichai Asusheewa struck three minutes before the break to hand them a 1-0 home win over Samut Songkhram, while Chainat and Chiangrai United played out a 0-0 draw at the Chainat Stadium.
Finally, Army United handed Pattaya United their third defeat of the campaign after edging an evenly-contested encounter at the Nongprue Municipality Football Field 2-1.
Cameroon international Matthew Mbuta fired the visitors ahead in the 33rd minute, but Pattaya equalised on the stroke of halftime through an effort from Russian forward Rodion Dyachenko.
Nonetheless, it was not to be for the Dolphins as Tatree Seeha knocked in a freekick nine minutes after the hour mark to grab all three points for Army.
Sunday's Thai Premier League Results
Bangkok Glass 0-1 Police United
Chainat 0-0 Chiangrai United
Pattaya United 1-2 Army United
Ratchaburi 1-1 Chonburi
Suphanburi 1-0 Samut Songkhram
Image courtesy of Chonburi FC