Erin Tañada, an official at the Liberal Party (LP), on Wednesday urged the Duterte administration to be transparent about the extent to which Michael Yang was involved in the decisions of the president.
On Tuesday, Malacanan acknowledged that China's businessman is President Rodrigo Duterte's economic advisor.
READ: Palace: Michael Yang is one of Duterte's advisers
Tañada said the opposition party was alarmed at Yang's role in Duthert's administration, especially given the fact that the president had previously denied that Yang could not be a mentor, "because he is a Chinese."
"The discrepancies in this executive do not do anything to regain our trust," said LP Vice-President for Foreign Affairs, noting that Yang had previously been involved in illicit drugs.
Duthert personally released him from the allegations, as he was a Davao partner, quoting Yang's close relationship with the Chinese Ambassador.
LEARN: KNOW: What is Michael Yang?
"Are these links linked to the ease and courage with which billions of peso value shabbards are transported to the Customs Office under the Malakanang headquarters in smuggling?" Asked the senator.
"We call on the Palace to be transparent about Michael Yang's involvement in presidential decisions, especially in economic matters. We urge the palace to explain to what extent Michael Yang is allowed access to information that is sensitive to national interests," he added.
The LP official also questioned Yang's competence and qualifications as an Economic Advisor.
"Is this really the case that they can not find qualified Filipinos to fill in? Where does his loyalty come from?" He asked.
Read: Alejando Duterte: Fire Chinese businessman as advisor
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