The Treasury yesterday said Abd al-Hamid al-Masli, also known as Hamza al-Darnawi, runs a Qaeda workshop in Pakistan that provides improvised explosive devices and components for Qaeda to be used in Afghanistan.
The 37-year-old Libyan-born Masli works in Waziristan on Pakistan's northwest border, where he also has instructed Qaeda recruits on making detonators.
"As of 2009, was personally in charge of IED component construction at the (Qaeda) electronics workshop" and in 2011 he was a member of the group's military committee, the Treasury said in a statement.
The designation of Masli as a bomb maker for Al Qaeda aims at cutting his and the group's access to financial and trade networks by banning American entities and individuals from undertaking any transactions with him.
"The US is determined to disrupt and dismantle these IED networks through all means available, including targeted sanctions," said Under Secretary for Terrorism and Financial Intelligence David Cohen.