Mill shutdown Q1-13 This could be why they "mill shutdown" was mentioned on one of the latest PR's in Q1-13. It definitely did not sound high impact on production.
From slide 23 of new March presenation up on website. May have to shut down Cerro Bayo mill for a new days to commission project?
"Flotation automation project to improve recoveries being commissioned March 2013 to improve recoveries approximately 2%"
https://www.mandalayresources.com/site/ywd_mandalayresourcescorp/assets/pdf/mnd_investor_presentation_march_2013_current.pdf
Slides 29-33 which show primary production veins and resource are also new compared to prior presentations. Will take a look at these later tonight.