**About the Editors**

#### **Jing Li**

Jing Li is an Associate Professor at the China University of Geosciences, Wuhan. Her research fields include coal geology; critical elements in coal and coal combustion products (CCPs); coal geochemistry; coal mineralogy; the environmental geochemistry of CCPs; and the sustainable and high-value-added utilization of CCPs.

#### **Yidong Cai**

Yidong Cai is a Professor at the China University of Geosciences, Beijing. He is an expert on unconventional resources evaluation; pore/fracture structure; fluid transport; and micromechanical properties.

#### **Lei Zhao**

Lei Zhao is a Professor at the China University of Mining and Technology (Beijing). She is famous for her research on mineral matter and trace elements in coal; strategically critical metals in coal-bearing sequences and coal combustion byproducts; and the environmental impact of coal combustion by-products.
