Is my business partner allowed to use all of our income and put it into his new business?

If you are shareholder of the Corporation with (50%) must be and agreement amount other to decide the profits even if he work more. 

Hola, ¿cómo estás? Si ambos son accionistas, es fundamental que exista claridad y consenso respecto a las ganancias y decisiones de la empresa. Para proteger sus intereses y evitar futuros conflictos, siempre recomendamos formalizar un acuerdo de accionistas o de socios.

Estos acuerdos establecen de manera clara los derechos, obligaciones y beneficios de cada parte, brindando seguridad jurídica y estabilidad a la empresa.

Hello! We would have to check the partnership agreement ? What does it allow partners to do?  Are they forbidding from setting up competing businesses?
How many hours is the partner working “getting clients”?  Did the other partner authorize this?
Who pays business expenses?