In our operation (not EU OPS or FAA), our company specific Jepp charts show an MDA. I recently did a sim in the UK where I provided our company's charts for the check. The TIRE had his company charts with him which showed a DA which was higher than our MDA, despite the charts having the same date. In our operation, we add the aircraft allowance which differs depending on the type. There's no point in restricting aircraft with an uneccessarily high minima.