Not Painting, but Paint, I think: this must refer to a plan to expand this manufacturer's paint production capacity.

Here's a Mexican document on what sounds like a similar project by a company called Productos Químicos y Pinturas, S.A. de C.V.:

"PROYECTO DE AMPLIACIÓN DE RESINAS Y PINTURAS"
[...]
"El proyecto consiste en la ampliación de la infraestructura y capacidad de producción. [...]
Tipo de Actividad o Giro Industrial: Producción de todo tipo de pinturas, recubrimientos e impermeabilizantes."
http://sinat.semarnat.gob.mx/dgiraDocs/documentos/mex/estudi...

Just "Paint Expansion Project" would do, but I think it makes it clearer if you add "Production":

"Vogel Paint Expansion Project Ahead of Schedule
Vogel Paint announced that phase three of a five-year, $29.3 million expansion plan for its powder coating operation located at the company’s headquarters in Orange City, Iowa, will begin ahead of schedule."
https://www.pcimag.com/articles/104252-vogel-paint-expansion...

"Haymes Paint site plant upgrade
Haymes Paint Production Expansion Project 2014/15"
http://compliancecontracting.com.au/projects-and-clients/-ha...