Langtang Ri Trekking and Expedition Pvt. Ltd.| Since 1991 P.O.Box: 7103, Thamel, Kathmandu, Nepal Tel: 00977-1-4423360, 4424268 | Mobile: 00977-9851053635 | Fax: 00977-1-4424267 E-Mail: info@langtang.com | langtangritrekking@gmail.com Web: www.langtang.com | Skype: panfadidi Facebook: http://www.facebook.com/langtangritrekking WhatsApp and Viber: 00977-985105335 Recommended by: Lonely Planet | Trip Advisor