This was a significant matter.
Ling was certainly not doing it sneakily.
Before the delegation left for Mozambique, Ling had informed Lang Cai of the details of the negotiation, citing the reason as increasing the strategic reserves of industrial raw materials, and procuring some of the foreign mineral reserves first.
The mining would be done slowly in the future.
Regarding this,
Lang Cai felt somewhat dissatisfied.
Because Ling had not notified him in advance, but had unilaterally sent a 'cooperation request' to the government of Mozambique, and by the time things were nearly settled, he was only informed, which was essentially just a 'notification'.
However, he didn't say anything.
He knew it would be of no use to say anything.
And Ling's reasoning left him unable to retort.