Thank you for your interest. We are eager to hear from you on any aspect of our business
(by appointment only)
Skype:
davidmao.wsc
Element:
@davidmao:matrix.org
Whatsapp
Hangouts
Do not hesitate to ask if needed our Swiss-based or German-based encrypted email addresses available at your convenience. ProtonMail Tutanota[Both use end-to-end encryption to secure private communications]