▁ 2 0 1 7 ▁Th ai ▁League ▁ 4 ▁Southern ▁Region ▁is ▁the ▁ 8 th ▁season ▁of ▁the ▁League ▁competition ▁since ▁its ▁establishment ▁in ▁ 2 0 0 9 . ▁It ▁is ▁in ▁the ▁fourth ▁tier ▁of ▁the ▁Th ai ▁football ▁league ▁system . ▁ ▁Ch anges ▁from ▁last ▁season ▁ ▁Prom oted ▁clubs ▁Four ▁club ▁was ▁promoted ▁to ▁the ▁ 2 0 1 7 ▁Th ai ▁League ▁ 3 ▁Southern ▁Region . ▁ ▁Sur at ▁Th ani ▁ ▁N ara ▁United ▁ ▁Tr ang ▁ ▁Ran ong ▁United ▁ ▁Re leg ated ▁clubs ▁ ▁N akh on ▁Si ▁Heritage ▁were ▁re leg ated ▁to ▁the ▁Th ailand ▁Am ateur ▁League . ▁ ▁Rel oc ated ▁clubs ▁ ▁Ch um phon ▁were ▁moved ▁from ▁the ▁Western ▁Region ▁ 2 0 1 6 . ▁ ▁Sin th ana ▁Kab in b uri ▁were ▁moved ▁from ▁the ▁Bang k ok ▁& ▁Eastern ▁ 2 0 1 6 . ▁ ▁Ren amed ▁clubs ▁ ▁Sur at ▁Th ani ▁City ▁author ize ▁from ▁Sin th ana ▁Kab in b uri ▁ ▁With dra wn ▁clubs ▁ ▁Ph ang ▁N ga ▁Club - lic ens ing ▁football ▁club ▁didn ' t ▁pass ▁to ▁play ▁ 2 0 1 7 ▁Th ai ▁League ▁ 4 ▁Southern ▁Region ▁so ▁this ▁club ▁is ▁taking ▁a ▁ 1 - year ▁break . ▁ ▁Exp ansion ▁clubs ▁ ▁Sur at ▁Th ani ▁United ▁was ▁promoted ▁from ▁the ▁ 2 0 1 6 ▁Th ai ▁Division ▁ 3 ▁Tournament ▁Southern ▁Region ▁W