For anyone who is willing to take the risk and book, the best is to use the LH offers display at
https://www.lufthansa.com/ua/en/flights - select Business as Travel Class on the top and then you can filter your results on the left.
The interesting offers are to BKK, SIN, ICN and HKG in Asia (ca. $1100) + BOG, EZE, GIG and GRU in South America (ca. $1350).
Please note that LH will book this in P class and therefore limited mileage possibilities (further info at
https://www.wheretocredit.com/lufthansa/p) - I suggest looking at booking with either OS or LX (use same site for mileage credit options).
The fare is PNCPUA and is available through Matrix. In summary: min 6 days or Sat night, max 3 months, no stopovers, open jaws allowed, sale runs until 12 April for travel between 1 May and 28 February, non-refundable, changes at $310 + fare class difference, limited number of seats, no skip lagging.