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\title{MANUSCRIPT TITLE}
\usepackage{etoolbox}
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\subtitle{Supplementary Information}
\author{Xxxxx Yyyy\textsuperscript{1} \and Ming
Su\textsuperscript{1,2,*} \and Min Yang\textsuperscript{1,2,*}}
\date{}
\begin{document}
\maketitle


\textsuperscript{1} State Key Laboratory of Environmental Aquatic
Chemistry, Research Center for Eco-Environmental Sciences, Chinese
Academy of Sciences\\
\textsuperscript{2} University of Chinese Academy of Sciences

\textsuperscript{*} Correspondence:
\href{mailto:mingsu@rcees.ac.cn}{Ming Su
\textless{}mingsu@rcees.ac.cn\textgreater{}},
\href{mailto:yangmin@rcees.ac.cn}{Min Yang
\textless{}yangmin@rcees.ac.cn\textgreater{}}

\thispagestyle{empty}

Figures and/or tables are provided below as the supplementary evidences
to the main text.

\newpage{}

\clearpage
{
\hypersetup{linkcolor=black}
\setcounter{tocdepth}{3}
\tableofcontents
}

\newpage{}

\begin{sfg}

\centering{

\includegraphics[width=0.4\linewidth,height=\textheight,keepaspectratio]{../figures/demo.pdf}

}

\caption{\label{sfg-demo}Caption of demo figure}

\end{sfg}%




\end{document}