The highest in state of of Negri Sembilan, although I wouln't call it a mountain. It's height of less than 1000 meter is not considered a mountain. Anyway, the view is wonderful from the summit.

On my personal opinion, Gunung Angsi is the second most spoilt gunungs in Malaysia, after Gunung Ledang. the treks are very wide and erosion is dominant on the treks. Unless the authorities take measure on this, Gunung Angsi will be a waste for agrotourism in Malaysia. I'll rate Gunung Angsi as the hottest gunung both on trek and summit, because of scarce trees available for protection against harmful ultraviolet rays. 
 

Location: Hutan Lipur Hulu Bendul, Negri Sembilan

Foot: Hutan Rekreasi Hulu Bendul 

Duration: 5 hours

Expedition type: Day Pack

Suggested Rucsac Capacity: 30 liters

Estimated Rucsac Loading: 3-5 kg

Water Supply: Available one hour before summit

Summit temperature: 25-35 deg Celcius

To get to the foot of mountain:
From Pudu Raya Bus Terminal (Kuala Lumpur), take a express coach to Seremban, Negri Sembilan. From there, take another bus to Hulu Bendul Recreation Forest. 

Mountain Guides:
Not needed. Waste of money.

Estimated Budget (From K.L.): RM 15

Emergency:
Make a written report to the nearby police station, stating your estimated day you exit the jungle.