Jobs on the line as Treasury shuts the Ryecroft Winery in McLaren Vale Wine. Rosemount Diamond Label Merlot 2007. TREASURY Wine Estates will shut the Ryecroft Winery in McLaren Vale and its 33 employees will have to find jobs elsewhere in the business or face redundancy. The company, which owns the Penfolds and Rosemount brands, said the winery had been operating at about half capacity for several years. Director wine production Australia and New Zealand Peter Taylor said the decision was not made lightly. The decision to stop operating Ryecroft winery was an extremely difficult one and is certainly not a reflection on the experience or capability of the team working there," he said. This is a tough but necessary action that Treasury has to take. We have several wineries within our production footprint and need to ensure that they operate at the highest possible capacity to maximise the efficiencies of our network. Unfortunately Ryecroft has been operating at around half its capacity for several years now, and it is simply not sustainable for this to continue. Rosemount wines previously made at Ryecroft will continue to source their fruit from McLaren Vale and surrounding regions; the only change is the location where the wine will be made."" The company said the winery would be shut down over coming months and would not participate in the 2015 vintage. "There are currently 33 people working at Ryecroft and Treasury is working closely with impacted employees and their representatives to determine the next steps in this process,"" the company said. "All impacted employees will be eligible to apply for alternative positions within Treasury, and if no suitable positions are secured, they will be supported with outplacement services and redundancy entitlements in accordance with their contractual terms/enterprise bargain agreement.""