Feb 8 (Reuters) - Prospero Silver Corp PSL.V
* Prospero provides project updates for 2017
* Joint venture negotiations are on-going for company's most advanced project, El Petate
* Two of company's100%-owned projects, Santa Maria del oro and Pachuca se, have been advanced to drill-ready status
* Additional field work is completed at Bermudez to bring project to drill-ready/joint venture status & drill permits will be sought Source text for Eikon: Further company coverage: PSL.V