Northern myanmar subspecies is Capricornis milneedwardsii montinus. In this photo.
Interestingly. And for this, for whom the information is useful.
Capricornis sumatraensis montinus, new subspecies
DESCRIPTION.-Similar to C. s. milne-edward&ii but with feet whitish or rufous,
usually without a black median line; skull characterized by the shallowness of the
notches at the rear edge of the palate and by the greater width and more flaring shape
of the posterior narial opening.
Color blackish brown, the body hairs in general pale or whitish basally, becoming
blackish in the terminal half. Side of muzzle with a poorly defined patch of dull
ochraceous just back of the tip; lips white with a white line extending back some four
inches from corner of mouth, and separated by a narrow blackish area from the white
throat patch that extends forward between the rami of the jaws; backs of ears and
area about their bases more or less tawny, mixed with darker which predominates on
the terminal third of the ears; inside of ears white. The long hairs forming the
central part of the mane are chiefly whitish becoming brown at their tips. Both fore
and hind feet may be whitish with a slight admixture of pale rusty, more intense in
some specimens. In the type the fore feet are bright clear ferruginous, the hind feet
with an indication of the blackish stripe; again the dark central line may be practically
obsolete. Along the sides and especially about the buttocks there is more or
less mixture of rusty hairs; the belly and inguinal region are whitish.
from: http://digitallibrary.amnh.org/dspace/bitstream/handle/2246/4390/N0410.pdf?sequence=1
And for the sake of completeness that the southern part of Burma, inhabits the subspecies Capricornis sumatrensis rubidus. Known to us as the Capricornis rubidus - red serow from publication HMW2.
Because between the Sichuan nominotypical subspecies C.m.milneedwardsii and reddish south Burmese taxa C.s.rubidus; standing between them transitional subspecies C.s.montinus which is unlike either one of them, but wear at each other characters of both.