I am also equally puzzled by such a move. If I am not wrong, I think the seller is one of those parties who took an interest a few years ago when Jaya was in some financial crisis.
Jaya has the right profile for long term investing - strong financial position, low price/book, strong operational cash flow, good dividend yield, in O & G sector etc. A lovely quiet stock in my portfolio.
The business review exercise, to unlock value, may provide a further catalyst to this stock. Looking forward to the results. Be patient.