June 15 (Reuters) - Downer EDI Ltd DOW.AX :
* Asx alert-DOW: update to downer services' offer for spotless,DOW-SPO.AX
* downer Services today announces that it now has an interest equivalent to 29.598% in issued share capital of Spotless Source text for Eikon: ID:nASX42MhQq Further company coverage: DOW.AX