diff --git a/documentation/content/en/books/porters-handbook/uses/_index.adoc b/documentation/content/en/books/porters-handbook/uses/_index.adoc
--- a/documentation/content/en/books/porters-handbook/uses/_index.adoc
+++ b/documentation/content/en/books/porters-handbook/uses/_index.adoc
@@ -1322,7 +1322,7 @@
 Possible arguments: (none), `build`, `run`, `current`, `lts`, `10`, `14`, `16`,
  `17`.
 
-Uses nodejs. Adds a dependency on package:www/node*[]. If a supported version is 
+Uses nodejs. Adds a dependency on package:www/node*[]. If a supported version is
 specified then `run` and/or `build` must be specified too.
 
 [[uses-objc]]
@@ -2053,6 +2053,53 @@
 Adds crossref:plist[plist-keywords-terminfo,`@terminfo`] to the [.filename]#plist#.
 Use when the port installs [.filename]#*.terminfo# files in [.filename]#${PREFIX}/share/misc#.
 
+[[uses-tex]]
+== `tex`
+
+Possible arguments: (none)
+
+Provide support for tex.
+Loads all the default variables for TEX related ports and does not add any dependency on any ports.
+
+Variables are used to specify which TEX modules are required.
+
+`USE_TEX`::
+The list of required TEX extensions at run-time.
+Add `:build` to the extension name to add a build-time dependency, `:run` to add runtime dependency, `:test` for test time dependency, `:extract` for extract time dependency.
+Example: `base texmf:build source:run`
+
+Current possible arguments are as follows:
+
+* `base`
+* `texmf`
+* `source`
+* `docs`
+* `web2c`
+* `kpathsea`
+* `ptexenc`
+* `basic`
+* `tlmgr`
+* `texlua`
+* `texluajit`
+* `synctex`
+* `xpdfopen`
+* `dvipsk`
+* `dvipdfmx`
+* `xdvik`
+* `gbklatex`
+* `formats`
+* `tex`
+* `latex`
+* `pdftex`
+* `jadetex`
+* `luatex`
+* `ptex`
+* `xetex`
+* `xmltex`
+* `texhash`
+* `updmap`
+* `fmtutil`
+
 [[uses-tk]]
 == `tk`