China Resources said top executives had visited its key business units in a bid to shore up morale after Song Lin was removed as the conglomerate's chairman over suspicions of corruption.
Qiao Shibo, the conglomerate's president, who was anointed top decision-maker on Friday, called on staff to continue normal operations and uphold party discipline.
Qiao was joined by vice-president Li Fuzuo in a visit to the Shenzhen production base of subsidiary Sanjiu Medical & Pharmaceutical, China Resources Holdings said in a statement on its website.
Song, 51, was removed from his posts as chairman and the company's Communist Party boss for "suspected serious violations of discipline and law", it said earlier.
Vice-chairman Wang Yin, executive directors Jiang Wei and Chen Lang, and vice-presidents Du Wenmin and Wang Chuandong separately visited units handling cement, banking, retailing, pharmaceuticals and natural gas distribution.
A company source said Qiao had not yet met the Hong Kong-based staff of the state-owned company due to the Easter holiday, and there was no news of a reshuffle of top management.
The party's top anti-corruption agency said on Thursday that it was investigating Song.