Trying to make contact with ex.son in law now living in china?

his name is stuart corstophine(ex st.andrews)fife,he is a "tool-pusher"in the oil industry,last known working in or off-shore nigeria,be great to get in touch with him ,he remarried a chinese girl ,but have lost touch with him,so if any of his family in (st.andrews area)can help please contact me at my e-mail address ,thanks bruce .