Maples Scientific Publisher journals are open access; we do not charge the end-user when accessing a manuscript or any article. This allows the scientific community to view, download, distribution an article in any medium, provided that the original work is properly cited, under the term of "Creative Commons Attribution License". In line with other open access journals, we provide a flat fee submission structure (dependent upon the journal) on the acceptance of a peer-reviewed article which covers in part the entirety of the publication pathway (the article processing charge). The process includes our maintenance, submission, and peer review systems and international editing, publication, and submission to global indexing and tracking organizations and archiving to allow instant access to the whole article and associated supplementary documents. We also have to ensure enough investment to secure a sustainable model which ethically, legally, and financially stable.