She said: ‘There could be a big scalp. These companies have to keep massive engines sitting around doing nothing on the tarmac and nobody knows how much longer this is going on for. Investors need to have a hard look at British Airways which relies on business travel and long haul.’ Stock Watch - Zambeef Products Heavy rains helped drive a whopping increase in first-half profits at African agricultural business Zambeef Products. The AIM-listed firm – which supplies pork, dairy, beef, chicken and cereals in Zambia, Ghana and Nigeria – said earnings were expected to be 2,167 per cent higher in US dollar terms than the same period of last year.