Li Ka-shing's Hutchison Whampoa is expected to post a fall in interim earnings of between 30 and 40 per cent this week, according to analysts.
The decline would mask an underlying improvement in the conglomerate's core ports and telecommunications businesses, they said.
Five analysts polled from leading European and United States investment banks estimated that Hutchison would make between HK$4.3 billion and HK$5.1 billion, a significant drop from the interim period last year, when it reported a one-off exceptional net gain of HK$1.9 billion.
Hutchison's results are expected to contain few exceptional profit or loss items this year.
ING Financial analyst Cusson Leung said: 'Except for the energy and treasury divisions, Hutchison is expected to report growth in all major divisions.
'We do not expect Hutchison to produce any major negative surprise in the results.'