GDM 2000 Negeri Sembilan and Melaka - EPSG:3378

WKT

PROJCS["GDM_2000_State_Cassini_Negeri_Sembilan_and_Melaka", 
	GEOGCS["GCS_GDM_2000", 
		DATUM["D_GDM_2000", 
			SPHEROID["GRS_1980", 6378137.0, 298.257222101]], 
		PRIMEM["Greenwich", 0.0], 
		UNIT["Degree", 0.0174532925199433]], 
	PROJECTION["Cassini"], 
	PARAMETER["False_Easting", 3673.785], 
	PARAMETER["False_Northing", -4240.573], 
	PARAMETER["Central_Meridian", 101.9749050416667], 
	PARAMETER["Scale_Factor", 1.0], 
	PARAMETER["Latitude_Of_Origin", 2.682347636111111], 
	UNIT["Meter", 1.0]]

WKT2

PROJCRS["GDM_2000_State_Cassini_Negeri_Sembilan_and_Melaka", 
	BASEGEOGCRS["GCS_GDM_2000", 
		DATUM["D_GDM_2000", 
			ELLIPSOID["GRS_1980", 6378137.0, 298.257222101]], 
		PRIMEM["Greenwich", 0.0], 
		CS[ellipsoidal, 2], 
		AXIS["Latitude (lat)", north, 
			ORDER[1]], 
		AXIS["Longitude (lon)", east, 
			ORDER[2]], 
		ANGLEUNIT["Degree", 0.0174532925199433]], 
	CONVERSION["Cassini", 
		METHOD["Cassini"], 
		PARAMETER["False_Easting", 3673.785], 
		PARAMETER["False_Northing", -4240.573], 
		PARAMETER["Central_Meridian", 101.9749050416667], 
		PARAMETER["Scale_Factor", 1.0], 
		PARAMETER["Latitude_Of_Origin", 2.682347636111111]], 
	CS[Cartesian, 2], 
	AXIS["Easting (X)", east, 
		ORDER[1]], 
	AXIS["Northing (Y)", north, 
		ORDER[2]], 
	LENGTHUNIT["Meter", 1.0], 
	ID["EPSG", "3378"]]

Data from @esri/proj-codes

{
  "wkid": 3378,
  "latestWkid": 3378,
  "gcsWkid": 4742,
  "macro": "PE_PCS_GDM_2000_STATE_CASSINI_N_SEMBILAN_MELAKA",
  "name": "GDM_2000_State_Cassini_Negeri_Sembilan_and_Melaka",
  "wkt": "PROJCS[\"GDM_2000_State_Cassini_Negeri_Sembilan_and_Melaka\",GEOGCS[\"GCS_GDM_2000\",DATUM[\"D_GDM_2000\",SPHEROID[\"GRS_1980\",6378137.0,298.257222101]],PRIMEM[\"Greenwich\",0.0],UNIT[\"Degree\",0.0174532925199433]],PROJECTION[\"Cassini\"],PARAMETER[\"False_Easting\",3673.785],PARAMETER[\"False_Northing\",-4240.573],PARAMETER[\"Central_Meridian\",101.9749050416667],PARAMETER[\"Scale_Factor\",1.0],PARAMETER[\"Latitude_Of_Origin\",2.682347636111111],UNIT[\"Meter\",1.0]]",
  "wkt2": "PROJCRS[\"GDM_2000_State_Cassini_Negeri_Sembilan_and_Melaka\",BASEGEOGCRS[\"GCS_GDM_2000\",DATUM[\"D_GDM_2000\",ELLIPSOID[\"GRS_1980\",6378137.0,298.257222101]],PRIMEM[\"Greenwich\",0.0],CS[ellipsoidal,2],AXIS[\"Latitude (lat)\",north,ORDER[1]],AXIS[\"Longitude (lon)\",east,ORDER[2]],ANGLEUNIT[\"Degree\",0.0174532925199433]],CONVERSION[\"Cassini\",METHOD[\"Cassini\"],PARAMETER[\"False_Easting\",3673.785],PARAMETER[\"False_Northing\",-4240.573],PARAMETER[\"Central_Meridian\",101.9749050416667],PARAMETER[\"Scale_Factor\",1.0],PARAMETER[\"Latitude_Of_Origin\",2.682347636111111]],CS[Cartesian,2],AXIS[\"Easting (X)\",east,ORDER[1]],AXIS[\"Northing (Y)\",north,ORDER[2]],LENGTHUNIT[\"Meter\",1.0],ID[\"EPSG\",\"3378\"]]",
  "description": "GDM 2000 Negeri Sembilan and Melaka",
  "authority": "EPSG",
  "version": "8.6(9.2.0)",
  "deprecated": "no",
  "areaname": "Malaysia - West Malaysia - Sembilan and Melaka",
  "extent": {
    "slat": 2.03,
    "nlat": 3.28,
    "llon": 101.7,
    "rlon": 102.71
  }
}