That article says the exact opposite of what you are claiming. This is the lede paragraph:
"In December 2018, a leaked letter from the Kenyan auditor-general’s office sparked a rumour that Kenya had staked its bustling Mombasa Port as collateral for the Chinese-financed Standard Gauge Railway. Our new research shows why the collateral rumour is wrong."
"In December 2018, a leaked letter from the Kenyan auditor-general’s office sparked a rumour that Kenya had staked its bustling Mombasa Port as collateral for the Chinese-financed Standard Gauge Railway. Our new research shows why the collateral rumour is wrong."
LLM much?