Yemen NGN 1996 - ESRI:115802

WKT

VERTCS["Yemen_NGN_1996", 
	DATUM["D_Yemen_NGN_1996", 
		SPHEROID["WGS_1984", 6378137.0, 298.257223563]], 
	PARAMETER["Vertical_Shift", 0.0], 
	PARAMETER["Direction", 1.0], 
	UNIT["Meter", 1.0]]

WKT2

VERTCRS["Yemen_NGN_1996", 
	DATUM["D_Yemen_NGN_1996", 
		ELLIPSOID["WGS_1984", 6378137.0, 298.257223563]], 
	CS[vertical, 1], 
	AXIS["Ellipsoidal height (h)", up, 
		LENGTHUNIT["Meter", 1.0]], 
	ID["Esri", "115802"]]

Data from @esri/proj-codes

{
  "wkid": 115802,
  "latestWkid": 115802,
  "macro": "PE_VCS_YEMEN_NGN_1996",
  "name": "Yemen_NGN_1996",
  "wkt": "VERTCS[\"Yemen_NGN_1996\",DATUM[\"D_Yemen_NGN_1996\",SPHEROID[\"WGS_1984\",6378137.0,298.257223563]],PARAMETER[\"Vertical_Shift\",0.0],PARAMETER[\"Direction\",1.0],UNIT[\"Meter\",1.0]]",
  "wkt2": "VERTCRS[\"Yemen_NGN_1996\",DATUM[\"D_Yemen_NGN_1996\",ELLIPSOID[\"WGS_1984\",6378137.0,298.257223563]],CS[vertical,1],AXIS[\"Ellipsoidal height (h)\",up,LENGTHUNIT[\"Meter\",1.0]],ID[\"Esri\",\"115802\"]]",
  "description": "Yemen NGN 1996",
  "authority": "Esri",
  "version": "10.4.0",
  "deprecated": "no",
  "areaname": "Yemen",
  "extent": {
    "slat": 8.95,
    "nlat": 19,
    "llon": 41.08,
    "rlon": 57.96
  }
}